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Home My WebLink AboutDERR-2025-003001 . rpsgroup.com November 14, 2023 Mr. Chris Howell Utah Department of Environmental Quality Division of Environmental Response and Remediation 195 North 1950 West Salt Lake City, UT 84116 VIA EMAIL: cjhowell@utah.gov Re: Submittal of Second Bi-Annual 2023 Groundwater Monitoring Report Chromalox, Inc. VCP - 073 2150 North Rulon White Boulevard, Ogden, UT 84404 Dear Mr. Howell: I have attached the Second Bi-Annual 2023 Groundwater Monitoring Report on behalf of Chromalox, Inc. This report provides the information from sampling events conducted in September 2023. If there are any questions regarding this report, please call me at (512) 579-3315. Yours sincerely, for RPS, A Tetra Tech Company Byron J. Ellington, PG(Tx), CPG Director BE/ge Attachments cc: Stephanie Lara (ETS CHX US) – Chromalox (e-copy - Stephanie.Lara@chromalox.com) 4801 Southwest Parkway Parkway 1, Suite 185 Austin TX 78735 T +1 512 579 3315 rpsgroup.com SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX, INC. VCP - 073 2150 NORTH RULON WHITE BOULEVARD OGDEN, UTAH 84404 RPS Project No.222153 Second Bi-Annual 2023 Groundwater Monitoring Report FINAL November 2023 SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com This report was prepared by RPS within the terms of RPS’ engagement agreement with its client and in direct response to an agreed scope of services. This report is supplied for the sole and specific purpose for use by RPS’ client. The report does not account for any changes relating the subject matter of the report, or any legislative or regulatory changes that have occurred since the report was produced and that may affect the report. RPS does not accept any responsibility or liability for loss whatsoever to any third party caused by, related to or arising out of any use or reliance on the report. Prepared by: Prepared for: RPS, A Tetra Tech Company Chromalox, Inc. 4801 Southwest Parkway, Parkway 1, Suite 185 Austin TX 78735 2150 North Rulon White Boulevard Ogden, Utah 84404 T +1 512 579.3315 T +1 801 786 4208 SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com Contents Appendices ......................................................................................................................................... 2 1 INTRODUCTION AND BACKGROUND............................................................................................ 4 1.1 Report Organization ................................................................................................................. 6 2 SITE BACKGROUND ........................................................................................................................ 7 2.1 Site Description ........................................................................................................................ 7 2.2 Environmental Setting .............................................................................................................. 7 2.2.1 Hydrogeology and Groundwater Flow Elevation ........................................................ 7 3 GROUNDWATER MONITORING PROGRAM .................................................................................. 8 4 GROUNDWATER SAMPLING .......................................................................................................... 9 4.1 Well Head Inspection and Maintenance .................................................................................. 9 4.2 Groundwater Elevations ........................................................................................................... 9 4.3 Groundwater Purging ............................................................................................................... 9 4.4 Groundwater Sampling ............................................................................................................ 9 4.5 Quality Assurance and Quality Control (QA/QC) ................................................................... 10 4.5.1 Field QA/QC .............................................................................................................. 10 Duplicate samples were collected at wells GMW-7 and MW-16 and analyzed for VOCs, 1,4- dioxane, SVOCs, and dissolved RCRA metals. The duplicate samples for all methods are generally consistent with the parent sample. ...................................... 10 4.5.2 Laboratory QA/QC .................................................................................................... 10 4.5.3 Decontamination Procedures ................................................................................... 10 4.6 Investigation Derived Wastes ................................................................................................. 10 5 GROUNDWATER ANALYTICAL RESULTS .................................................................................. 11 5.1 VOCs ...................................................................................................................................... 11 5.1.1 1,4-dioxane ............................................................................................................... 12 5.2 Dissolved Metals .................................................................................................................... 12 5.2.1 Dissolved Metals ....................................................................................................... 12 5.3 SVOCs ................................................................................................................................... 12 6 SUMMARY AND FUTURE ACTIVITIES.......................................................................................... 13 6.1 Summary ................................................................................................................................ 13 6.2 Future Activities ...................................................................................................................... 13 Appendices Appendix A - Figures Figure 1 Site Vicinity Map Figure 2 Site Layout Figure 3a Shallow Groundwater Elevation Contour Map SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com Figure 3b Deep Groundwater Elevation Contour Map Appendix B - Tables Table 1 Groundwater Elevations & Gauging Results Table 2 Summary of Groundwater Analytical Results Appendix C –Field Forms Appendix D – VOC Trend Diagrams Appendix E – 1,1-DCE Trend Diagrams Appendix F – Dissolved Metals Trend Diagrams Appendix G – Laboratory Reports and Chains of Custody SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com PROFESSIONAL CERTIFICATION AND LIMITATIONS The information contained in or accompanying this submittal is true, accurate, and complete to the best of our knowledge. As to those portions of this submittal for which we cannot personally verify the accuracy and were prepared by our subcontractors and vendors, the submittal and attachments were prepared in accordance with commonly accepted industry standards and procedures designed to assure that qualified personnel properly gathered and evaluated the information submitted or, were prepared by or at the direction of environmental professionals representing our subcontractors and vendors. This report has been prepared under the direct supervision of the undersigned. The opinions expressed in this document are based upon the information available to RPS and are given in response to a limited scope of work and should be considered and implemented only in light of that limited scope of work. The services provided by RPS in completing this project were consistent with normal standards of the profession. No warranty is expressed, implied, or made. Reviewed and Approved by: _________________________ __________________________ Byron J. Ellington, PG(Tx), CPG Mike H. Wilson Director Vice President 512.579.3315 404.809.3884 SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 1 INTRODUCTION AND BACKGROUND RPS Group, Inc. (RPS), on behalf of Chromalox, Inc. (Chromalox), has prepared this report presenting the results of the Second 2023 Bi-Annual groundwater monitoring event conducted at Chromalox’s property located at 2150 North Rulon White Boulevard in Ogden, Utah (the site). A site location map is included as Figure 1 in Appendix A. On August 29, 2011, Chromalox entered into an agreement with the Utah Department of Environmental Quality (UDEQ) to address the identified contamination under the Voluntary Clean-up Program (VCP) of the UDEQ. VCP number 073 was assigned to the site. As part of an approved Interim Remedial Action Plan (IRAP), Chromalox is submitting this 2023 Second Bi-annual 2023 Groundwater Monitoring Report that documents groundwater conditions at the site. Analytical results of this report are compared to baseline groundwater conditions established in the 3rd Quarter 2019 groundwater monitoring event. Historical site investigations and groundwater monitoring results have been provided in previous bi-annual reports submitted to UDEQ. SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 1.1 Report Organization The report is organized as follows: Section 1.0 Includes an introduction. Section 2.0 Describes the site’s background and environmental setting. Section 3.0 Presents the groundwater monitoring program. Section 4.0 Includes details of the monitoring and sampling procedures used during the groundwater monitoring event. Section 5.0 Presents groundwater analytical results for this quarter. Section 6.0 Summarizes the results of the current monitoring event and presents future activities. Section 7.0 References. SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 2 SITE BACKGROUND 2.1 Site Description The site is comprised of 14.04 acres located at the northeast corner of the intersection of North Rulon White Boulevard and W 2150 N. The site location and site layout are depicted in Figures 1 and 2, respectively, of Appendix A. Chromalox manufactures various industrial heating elements at the site, including tubular heating elements, component heaters (strip and ring, cartridge, and sheet metal), immersion elements (large and small flanged, screw plugs, and over-the-side), and system heaters (heat transfer and circulation). 2.2 Environmental Setting A summary of the site environmental setting is provided below. 2.2.1 Hydrogeology and Groundwater Flow Elevation Groundwater at the site has generally been encountered between approximately 7 and 28 feet below ground surface (bgs). Permanent groundwater monitoring wells are installed at two depth ranges; shallow wells are installed at depths between approximately 20 to 30 feet bgs and deep wells are installed at depths of approximately 35 to 43 feet. However, it should be noted that the apparently variable depth to groundwater at the site does not appear to reflect topography, as the elevation change noted across the entire site is only 10 feet. Rather, the previously observed variable depth to groundwater is likely the result of two factors: 1) the low hydraulic conductivity of the native clayey soil that limits horizontal and vertical movement, and 2) the presence of groundwater within discontinuous sand lenses in the native clayey soil. Review of logs of area potable water supply wells surrounding the Chromalox facility indicates that these wells are completed at deep levels (i.e., greater than 100 feet bgs). Review of area well logs suggests that the geology in the area is mostly clay with discontinuous sand and silt lenses over 150 feet thick. SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 3 GROUNDWATER MONITORING PROGRAM RPS conducted the Second Bi-Annual 2023 groundwater monitoring event on September 6 and 7, 2023, in accordance with the State-approved groundwater monitoring plan dated June 2019. A total of 28 site wells were gauged for depth to water and depth to bottom 1,2. A total of 20 wells (excluding injection wells INJ-2 through INJ- 9 and GMW-6) were sampled for Volatile Organic Compounds (VOCs), 1,4-dioxane, Semi-VOCs (SVOCs), and dissolved Resource Conservation and Recovery Act (RCRA) metals. Field activities consisting of groundwater sampling were performed by Tetra Tech of Salt Lake City, Utah. A site- specific Health and Safety Plan developed for the site was followed by RPS and Tetra Tech personnel during field activities. The following tasks were completed to implement the scope of work for this groundwater monitoring event: • Inspected each well head and noted the condition of well vault, bolts, lids, well caps and gaskets; • Measured the static groundwater levels (water levels) in all 28 site wells. The tape and probe were decontaminated between each well to minimize the potential for cross-contamination; • Purged and sampled the groundwater from 20 of the 28 monitoring wells using low flow sampling techniques; • Recorded water quality parameters such as pH, electrical conductivity (EC), temperature, dissolved oxygen (DO), oxygen reduction potential (ORP), and turbidity using a flow-through cell at regular intervals as part of the purging and sampling activities. Details on these activities is presented in the next sections. 1 Monitoring well INJ-2 was scheduled to be gaged; however, the well bore was inaccessible during the field effort because a bolt locking the protective cover had been sheard. 2 Nine monitoring wells (GMW-1, GMW-2, GMW-3, GMW-7, MW-11, MW-15, MW-21, MW-22, and GP-13) were properly plugged and abandoned in June 2023 ahead of site improvement construction. As appropriate and in consultation with UDEQ, the monitoring wells will be replaced following the site improvements. SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 4 GROUNDWATER SAMPLING The field activities of this sampling event are presented in this section. 4.1 Well Head Inspection and Maintenance Well heads were inspected prior to gauging depth to groundwater at each well. Damaged bolts, lids, well caps, and gaskets were noted and will be repaired or replaced as needed during the subsequent groundwater sampling event. Any significant water accumulation in the well vault is evacuated prior to opening the well cap and sampling. 4.2 Groundwater Elevations The wells were gauged for depth to groundwater using a calibrated Solinst electrical water interface probe. Depths were measured to the nearest 0.01 feet and referenced to the top of each surveyed well casing. The tape and probe were decontaminated after each measurement to minimize the potential for cross contamination. Groundwater elevations from shallow and deep monitoring wells were utilized to create shallow and deep groundwater potentiometric surface maps. Previously installed deep monitoring wells (MW-1, MW-5, MW-7, MW- 8, MW-9 and GMW-5) are located near the northeast portion of the site. Deep monitoring wells installed in 2019 (MW-12D, MW-13D and MW-14D) are nested with shallower wells in the vicinity of AOC 4 and AOC 6. The remaining monitoring wells are shallow and distributed across the site. Figure 3a and Figurer 3b of Appendix A presents the locations of the monitoring wells at the site. Groundwater flow direction in both the shallow and the deeper groundwater bearing units are somewhat variant over time but continues to indicate an overall north to northwest flow direction. Groundwater elevations are summarized on Table 1 in Appendix B. Groundwater flow direction at the site will continue to be assessed during well gauging in any subsequent bi-annual groundwater sampling events. Groundwater elevations are summarized on Table 1 in Appendix B. 4.3 Groundwater Purging During purging, water quality parameters (temperature, pH, EC, turbidity, DO, and ORP) were measured and recorded at regular intervals using a calibrated flow-through cell. Prior to initiating groundwater sampling, each well was purged to remove the stagnant water in the tubing. This volume was calculated by adding the depth of the pump multiplied by the tubing diameter (volume of discharge line) to the standard volume of the bladder pump (estimated at 395 milliliters). Thereafter, groundwater was purged until the water quality indicator parameters had stabilized to within five percent (%) difference between consecutive readings. Groundwater purge and sampling field forms are included as part of Appendix C of this report. 4.4 Groundwater Sampling After purging the wells, groundwater samples were collected from each well through dedicated tubing. Care was taken to collect the groundwater samples at a low flow rate of approximately 250 mL/min to avoid agitating the preservative present in the sampling bottles and to help fill the bottles without headspace, thereby minimizing off gassing of VOCs from the samples. Samples for VOC and 1,4-dioxane analyses were collected first. SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com Groundwater samples were collected into laboratory-provided sample containers for each respective analysis. A summary of the sampling and analysis program results are presented in Table 2 in Appendix B. Each sample container was labeled with the date and time of sample collection, the analyses requested, and a unique sample name. Following labeling, the samples were kept on ice in a cooler. A total of 22 primary samples (including two duplicate samples, discussed below) were sent under chain-of-custody to Pace Analytical National (Pace) in Mount Juliet, Tennessee, a state-certified environmental laboratory, for analysis. 4.5 Quality Assurance and Quality Control (QA/QC) 4.5.1 Field QA/QC Duplicate samples were collected at wells GMW-5 and MW-10B and analyzed for VOCs, 1,4-dioxane, SVOCs, and dissolved RCRA metals. The duplicate samples for all methods are generally consistent with the parent sample. 4.5.2 Laboratory QA/QC The laboratory performed internal QA/QC tests to ensure analytical precision, including method blanks, surrogates, laboratory control spike and laboratory control spike duplicates, matrix spike and matrix spike duplicates, laboratory duplicates, and initial and continuing calibration checks. These results are included in the laboratory reports included in Appendix G. 4.5.3 Decontamination Procedures All commonly used equipment that came in contact with potentially contaminated groundwater was decontaminated between sampling locations using the three-stage wash and rinse decontamination procedure (i.e., rinse equipment with tap water, wash equipment with a non-phosphate detergent, and final rinse with distilled water). 4.6 Investigation Derived Wastes The waste generated from the groundwater sampling field activities (decontamination water and purged groundwater) was temporarily stored at the site in an appropriately labeled, sealed, and covered Department of Transportation (DOT) approved 55-gallon drum. The wastes will be managed offsite upon receipt of laboratory analytical results. SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 5 GROUNDWATER ANALYTICAL RESULTS Groundwater samples were analyzed by Pace for the parameters discussed in Section 3. The samples were relinquished to the laboratory with the appropriately signed chain-of-custody forms completed at the time of sampling. Groundwater analytical testing results are summarized on Table 2. Trend graphs for each monitoring well are presented in Appendices D through F. The laboratory analytical reports and the corresponding COCs are presented in Appendix G. 5.1 VOCs A summary of detected VOCs is presented in Table 2 of Appendix B. Nine VOCs were detected at a concentration that exceeded the UDEQ groundwater standard, USEPA Maximum Contaminant Level (MCL), and/or the USEPA risk-based derived Tapwater Regional Screening Level (RSL). Concentrations of analytes in exceedance of the aforementioned standards in the monitoring wells are discussed below: • 1,1-DCE was reported in approximately nine monitoring wells above one or more applicable standards. Concentrations ranged from 0.0012 mg/L in monitoring well MW-19 to 46.2 mg/l in MW-14S. • 1,1-DCA was reported in approximately eight monitoring wells above one or more applicable standards. Concentrations ranged from 0.00484 mg/L in monitoring well GMW-4 to 3.73 mg/l in MW-14S. • 1,2-DCA was reported in approximately three monitoring wells above one or more applicable standards. Concentrations ranged from 0.00131 mg/L in monitoring well MW-16 to 0.16 mg/l in MW-14S. • Chloroform was reported in approximately one monitoring well (MW-13S) at a concentration of 0.00603 mg/l, which exceeds one or more of the applicable standards. • 1,1,1-TCA was reported in approximately one monitoring well (MW-14S) at a concentration of 0.268 mg/l, which exceeds one or more of the applicable standards. • 1,1,2-TCA was reported in approximately two monitoring wells above one or more applicable standards. Concentrations ranged from 0.00318 mg/L in well MW-13S to 0.0961 mg/L in well MW-14S. • PCE was reported in approximately one monitoring well (MW-14S) at a concentration of 0.0541 mg/l, which exceeds all three applicable standards. • TCE was reported in approximately two monitoring wells above one or more applicable standards. Concentrations ranged from 0.00817 mg/L in well MW-13S to 0.111 mg/L in well MW-14S. • Vinyl Chloride (VC) was reported in three monitoring wells above one or more applicable standards. Concentrations ranged from 0.00258 mg/l in monitoring well MW-14D to 0.0699 mg/l in MW-13S. The chlorinated VOCs in groundwater continue to remain mostly situated at the northern and eastern portions of the site. Although GMW-1 was plugged in June 2023, it is assumed based on historical data that this area of the site remains unimpacted. The highest concentrations of analytes (chlorinated solvents in particular) above the UDEQ Groundwater Quality Standards and USEPA RSLs and MCLs remain detected in the vicinity of the injection wells located near AOC 4 & AOC 6, at the northwestern portion of the site. Analytical trend graphs for VOCs are included in Appendix D while trend graphs for 1,1-DCE, which is the most pervasive constituent in groundwater, are included in Appendix E. SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 5.1.1 1,4-dioxane 1,4-dioxane was reported above the applicable standards in approximately 15 of the monitoring wells ranging from 0.000633 mg/l in well MW-1 (J flagged) up to 0.798 mg/l in well MW-13S. Neither a UDEQ Groundwater Quality Standard nor an MCL has been established for 1,4-dioxane. 5.2 Dissolved Metals During the Second Bi-Annual 2023 sampling event on September 6 and 7, 2023, RPS analyzed samples for dissolved RCRA Metals, including dissolved iron and dissolved manganese. 5.2.1 Dissolved Metals Two dissolved metals were reported at a concentration above the established standards. Concentrations of analytes in exceedance of the aforementioned standards in the monitoring wells are discussed below: • Arsenic (dissolved) was reported in approximately 14 monitoring wells above one or more established standard. Concentrations ranged from 0.0131 mg/l in monitoring well MW-1 to 0.362 mg/l in well MW-14D. • Manganese (dissolved) was reported in five monitoring wells above the RSL. Concentrations ranged from 0.446 mg/l in monitoring well GMW-8 to 5.8 mg/l in well MW-14S. Concentrations of dissolved arsenic above groundwater screening criteria continue to be distributed throughout the site. Manganese detections in excess of the RSL was limited to five wells in the vicinity of AOC-4 and AOC-6 during this monitoring period. No other metals were detected in wells at concentrations exceeding applicable standards. Most metal concentrations near the treatment areas appear to be generally stable and continue to show no significant long-term increases following remediation activities. Metal concentrations within the treatment areas will continue to be monitored to verify any long-term influence of the injection treatments on the release of metals to groundwater. Analytical trend graphs for dissolved metals are included in Appendix F 5.3 SVOCs No SVOCs were detected at a concentration that exceeded the UDEQ groundwater standard, USEPA Maximum Contaminant Level (MCL), or the USEPA risk-based derived Tapwater Regional Screening Level (RSL) during this round of groundwater monitoring. Detected concentrations of SVOCs continue to remain below groundwater screening criteria with the exception of 1,4-Dioxane, Benzo(a)pyrene, and Dibenz(a,h)anthracene, which have been historically detected in site wells but were not detected during this round of groundwater monitoring. Current and historical groundwater analytical testing data are present on Table 2 in Appendix B. SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 6 SUMMARY AND FUTURE ACTIVITIES On September 6 and 7, 2023, RPS conducted the Second Bi-Annual 2023 groundwater monitoring event that included gauging of 28 monitoring wells and sampling of 20 monitoring wells at the site. 6.1 Summary Based on the analytical results from all the sampling events, concentrations of the chlorinated VOCs appear to continue to fluctuate somewhat over time, but generally maintain concentrations in the same order of magnitude in each of the monitoring wells. The highest concentrations detected were still reported in the vicinity of AOC 4 and AOC 6, with some elevated concentrations along the eastern boundary of the site in wells MW-10B, MW-16, MW-19, MW-20, and MW-21. The following conclusion and recommendations are based on the results of the current and overall groundwater monitoring program: • Groundwater flow direction is somewhat variant over time but continues to indicate an overall north to northwest flow direction. • Due to past injection activities, the groundwater conditions in the injection wells are not considered to be representative of average groundwater conditions at the site. As such, on March 2, 2023, UDEQ approved of the removal of injection wells INJ-2 through INJ-9 from the groundwater monitoring schedule in favor or relying on data collected from nearby wells. Additionally, monitoring well GMW-6 was removed from the groundwater monitoring schedule as this area is sufficiently being evaluated by (and may be duplicative of) nearby wells. • Analytical parameter concentrations for the monitoring wells were generally consistent with the previous quarter’s sampling event with a mixture of increases and decreases in concentrations of regulated constituents. Elevated chlorinated solvent concentrations are still within the confines of AOC 4 and AOC 6. 1,4-Dioxane concentrations are more widely distributed, but the highest levels are still located in these AOCs. Elevated VOCs are also still being detected along the eastern property boundary in monitoring wells (MW-10B, MW-16, MW-19 MW-20, and MW-21). 6.2 Future Activities Based on recommendations made by the UDEQ, RPS is currently preparing to submit to UDEQ a Conceptual Site Model (CSM) on behalf of Chromalox. The purpose of a CSM is to identify sources, receptors and pathways associated with the area(s) of concern historically noted at the site. The CSM will also assist in the effective communication of critical issues and/or processes identified at the site and support the process of determining any future remedial actions, where warranted, and regulatory paths toward closure. The next sampling event (March 2024) will be performed in accordance with UDEQ agreements and the State- approved June 2019 groundwater monitoring plan. As UDEQ is aware, Chromalox currently making site improvements. Development activities include the construction of a 100,000 square foot building to the east of the existing facility, affecting several existing monitoring wells. As such, and at the request of UDEQ, RPS has overseen the proper decommissioning of nine monitoring wells in order to eliminate the potential conduit for pollution to reach the groundwater. New monitoring wells, where warranted, will be installed following the completion of site development activities. SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com Figures X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X XXXXXXXXXXXXXX X X X X X X X X NO R T H R U L O N W H I T E B O U L E V A R D WEST 2150 NORTH X X FORMER DEGREASING AREAS FORMER NICKEL PLATING/ETCHING TEST AREA SANDBLASTING OF F I C E S X X PROPANE TANK AND SHELTER MW-10B GMW-3 MW-5 MW-9 GMW-5 MW-8 GMW-6 MW-1 GMW-2 GMW-7 GMW-1 MW-7 MW-11 MW-15 MW-13S/ MW-13D MW-12S/ MW-12D MW-18 MW-17 MW-16 FORMER TCA DEGREASER TANK FORMER TCA DEGREASER TANK GP-17 GP-16 GP-13 GMW-8 GMW-4 INJ-4 INJ-5 INJ-3 INJ-6 MW-20 MW-21 MW-19 MW-22MW-14S/ MW-14D INJ-7 INJ-8 INJ-9 427 5 . 5 0 4276. 5 0 4276.50 4277.50 4277. 5 0 4278. 5 0 4278.5 0 427 8 . 5 0 42 7 9 . 5 0 4274.50 CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 2 1 5 3 GRAPHIC 11/8/23 CS/JB NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : 0 50 100 FIGURE: 3A SHALLOW GROUNDWATER POTENTIOMETRIC SURFACE- SEPTEMBER 6,7,2023 SITE BOUNDARY PREVIOUSLY INSTALLED WELL WELL INSTALLED IN 2019 GROUNDWATER CONTOUR LINE WELL THAT WERE NOT LOCATED/ DAMAGED 4280.91 4273.88 4277.72 4278.26 GROUNDWATER FLOW DIRECTION 4282.52 4280.76 4274.43 4276.77 4278.21 4277.28 4279.38 4279.50 4583.72 4276.48 4277.68 4278.36 4277.70 4278.03 4277.68 4277.85 DECOMMISSIONED WELLS IN JUNE 2023 NEW MONITORING WELL INSTALLED OCTOBER 2021 NEW INJECTION WELL INSTALLED IN 2020 4278.24 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X XXXXXXXXXXXXXX X X X X X X X X NO R T H R U L O N W H I T E B O U L E V A R D WEST 2150 NORTH X X FORMER DEGREASING AREAS FORMER NICKEL PLATING/ETCHING TEST AREA SANDBLASTING OF F I C E S X X PROPANE TANK AND SHELTER MW-10B GMW-3 MW-5 MW-9 GMW-5 MW-8 GMW-6 MW-1 GMW-2 GMW-7 GMW-1 MW-7 MW-11 MW-15 MW-13S/ MW-13D MW-12S/ MW-12D MW-18 MW-17 MW-16 FORMER TCA DEGREASER TANK FORMER TCA DEGREASER TANK GP-17 GP-16 GP-13 GMW-8 GMW-4 INJ-4 INJ-5 INJ-3 INJ-6 MW-20 MW-21 MW-19 MW-22MW-14S/ MW-14D INJ-7 INJ-8 INJ-9 42 7 7 . 0 0 4 2 7 6 . 0 0 4 2 7 5 . 0 0 42 7 6 . 0 0 42 7 7 . 0 0 4 2 7 7 . 0 0 4 2 7 6 . 0 0 4 2 7 4 . 0 0 4 2 7 5 . 0 0 CHROMALOX 2150 RULON WHITE BOULEVARD OGDEN, UT 22 2 1 5 3 GRAPHIC 11/7/23 CS/JB 3B NORTH DESCRIPTION: DATE: SCALE: DRAWN: FI L E : FIGURE: 0 50 100 DEEP GROUNDWATER POTENTIOMETRIC SURFACE- SEPTEMBER 6,7, 2023 SITE BOUNDARY LEGEND PREVIOUSLY INSTALLED WELL WELL INSTALLED IN 2019 WELL THAT WERE NOT LOCATED/ DAMAGED 4276.34 4277.01 4275.82 4276.50 4277.03 4275.50 4276.11 4274.20 4275.25 NEW MONITORING WELL INSTALLED OCTOBER 2021 NEW INJECTION WELL INSTALLED IN 2020 GROUNDWATER CONTOUR LINE (DASHED WHERE INFERRED) GROUNDWATER FLOW DIRECTION DECOMMISSIONED WELLS IN JUNE 2023 4275.45 SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com Tables Table 1 Chromalox Wells Elevation Gauging Table September 2023 September 2023 - GW Gauging & Well Analyses Chromalox - 2150 Rulon White Boulevard Ogden, Utah 84404 Count Well Name Top of Casing Elevation Depth to Water (ft.- BTOC) Water Elevation Depth to Bottom (ft.-BTOC) Analyses (x=select analysis for this well) Notes (Sept 2023)82 7 0 SV O C s 1, 4 - D i o x a n e by 82 7 0 SI M VO C s 82 6 0 Di s s RC R A 8 Me t a l s + Fe , Mn 4 GMW-4 11.31 21.20 x x x x TOC Elevation Unknown 5 GMW-5 4287.382 11.93 4275.45 33.25 x x x 6 GMW-6 4286.32 8.06 4278.26 22.25 x x x 8 GMW-8 4287.73 11.62 4276.11 30.78 x x x 9 MW-1 4287.326 10.32 4277.01 43.26 x x x x 10 MW-5 4288.308 11.28 4277.03 40.12 x x x x 11 MW-7 4284.362 8.54 4275.82 32.50 x x x x 12 MW-8 4287.91 11.41 4276.50 37.93 x x x 13 MW-9 4287.444 11.10 4276.34 40.30 x x x 14 MW-10B 4288.91 8.00 4280.91 24.80 x x x x 16 MW-12S 4285.15 7.43 4277.72 19.90 x x x x 17 MW-12D 4285.03 9.53 4275.50 37.60 x x x x 18 MW-13S 4285.31 7.10 4278.21 17.02 x x x x 19 MW-13D 4285.33 11.13 4274.20 36.90 x x x x 20 MW-14S 4286.70 9.42 4277.28 28.20 x x x x 21 MW-14D 4286.73 11.48 4275.25 38.20 x x x x 23 MW-16 4288.84 8.08 4280.76 25.76 x x x x 24 MW-17 4286.84 12.41 4274.43 27.40 x x x x 25 MW-18 4287.61 13.73 4273.88 23.36 x x x x 26 MW-19 4287.42 8.04 4279.38 26.45 x x x 27 MW-20 4287.27 7.77 4279.50 24.56 x x x 31 INJ-2 NA 7.96 XXXXX 30 ----Well inaccessible, protective cover damaged, bolt sheared.32 INJ-3 4286.46 8.78 4277.68 32.94 x x x 33 INJ-4 4286.36 8.00 4278.36 28.60 x x x 34 INJ-5 4286.37 8.69 4277.68 25.20 x x x 35 INJ-6 4285.91 7.88 4278.03 21.46 x x x 36 INJ-7 4286.67 8.82 4277.85 34.63 x x x 37 INJ-8 4286.71 10.23 4276.48 34.25 x x x 38 INJ-9 4286.67 8.97 4277.70 37.90 x x x Shaded wells are considered deep monitoring wells over 30'Highlighted =Gauged only Page 1 of 1 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected 09/17/2019 02/19/2020 06/23/2020 06/25/2020 09/22/2020 11/4/2020 03/23/2021 10/7/2021 10/7/2021 03/30/2022 10/24/2022 03/28/2023 9/9/2023 09/17/2019 02/20/2020 6/23/2020 09/23/2020 11/4/2020 03/19/2021 10/7/20201 03/30/2022 10/25/2022 03/28/2023 09/09/2023 VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0250 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 J4 <0.0500 Benzene 0.005 0.00046 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Carbon Disulfide NE NE NE NA NA NA NA NA NA NA <0.000500 <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA Carbon Tetrachloride 0.005 0.00046 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Chlorobenzene 0.1 0.078 0.1 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 Chloroethane NE 21 NE <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 0.00109 J <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 Chloroform NE 0.00022 0.08 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 Dichlorodifluoromethane NE 0.2 NE <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 1,1-Dichloroethane NE 0.0028 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 0.0257 <0.00100 <0.00100 <0.00100 <0.00100 0.00100 J 0.000903 J NA 0.000458 J 0.00046 J 0.000302 J 0.000468 J 0.000322 J 0.0016 <0.00100 1,2-Dichloroethane 0.005 0.00017 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,1-Dichloroethene 0.007 0.28 0.007 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 0.0794 <0.00100 <0.00100 <0.00100 0.00178 0.00266 0.00158 NA 0.000758 J 0.00103 0.000578 0.00104 0.000926 J 0.00326 <0.00100 Cis-1,2-Dichloroethene 0.07 0.036 0.07 <0.00100 <0.00100 0.000168 J <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000389 J NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Trans-1,2-Dichloroethene 0.1 0.36 0.1 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Di-Isopropyl Ether NE 1.5 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 Ethylbenzene 0.7 0.0015 0.7 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 p-Isopropyltoluene NE NE NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 2-Butanone (MEK)NE 5.6 NE <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.0100 Methylene Chloride 0.005 0.011 0.005 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.0100 Naphthalene NE 0.00017 NE <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 J4 <0.00500 <0.00500 n-Propylbenzene NE 0.66 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,1,2,2-Tetrachloroethane NE 0.000076 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,1,2-Trichlorotrifluoroethane NE 10 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Tetrachloroethene 0.005 0.011 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Toluene 1 1.1 1 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 <0.000500 0.000347 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,2,3-Trichlorobenzene NE 0.007 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J4 <0.00100 <0.00100 1,1,1-Trichloroethane 0.2 8 0.2 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 0.00363 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,1,2-Trichloroethane 0.005 0.00028 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 Trichloroethene 0.005 0.00049 0.005 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 0.000430 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,2,3-Trichloropropane NE 0.00000075 NE <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 1,2,4-Trimethylbenzene NE 0.056 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00250 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,2,3-Trimethylbenzene NE 0.055 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 1,3,5-Trimethylbenzene NE 0.06 NE <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Vinyl Chloride 0.002 0.000019 0.002 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 Xylenes, Total 10 0.19 10 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE 0.000786 0.00208 J <0.00300 <0.00300 <0.00300 NA 0.00592 <0.000420 <0.000400 0.000828 B 0.000265 J <0.000400 0.000633 J3 J4 0.0127 0.00903 0.0115 0.00544 NA 0.00626 0.00362 B 0.0045 0.00377 0.0132 0.00916 SVOCs - USEPA Method 8270C Chrysene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA <0.00100 NA <0.00111 <0.00100 <0.00100 Hexachloroethane NE 0.00033 NE <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA NA NA NA NA <0.00100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 Benzo(a)anthracene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(b)fluoranthene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(k)fluoranthene NE NE NE NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(g,h,i)perylene NE NE NE NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 Benzo(a)pyrene 0.0002 0.000025 0.0002 NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 Dibenz(a,h)anthracene NE 0.000025 NE NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 Naphthalene NE 0.00017 NE NA NA NA NA NA NA <0.00100 NA NA NA NA NA <0.00100 NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 Benzylbutyl Phthalate NE 0.016 NE <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 0.00105 J <0.00300 <0.00300 Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 Di-N-Butyl Phthalate NE 0.9 NE <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 <0.00300 0.000419 J <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 Diethyl Phthalate NE 15 NE <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 Dimethyl Phthalate NE NE NE <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 2,4-Dichlorophenol NE 0.046 NE <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 2,4-Dimethylphenol NE 0.36 NE <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 Diethyl phthalate NE 1.5 NE <0.00300 <0.00300 <0.00300 NA NA <0.00300 <0.00300 NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 2-Nitrophenol NE NE NE <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 Pentachlorophenol 0.001 0.000041 0.001 <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 Phenol NE 5.8 NE <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA <0.0100 <0.0100 0.00883 J <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Acenaphthylene NE NE NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(a)Anthracene NE 0.00003 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(a)Pyrene 0.0002 0.000025 0.0002 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(b)Fluoranthene NE 0.00025 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(g,h,i)Perylene NE NE NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Benzo(k)Fluoranthene NE 0.0025 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Chrysene NE 0.025 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Dibenz(a,h)Anthracene NE 0.000025 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Fluoranthene NE 0.8 NE <0.0000500 <0.0000500 <0.0000500 NA <0.000100 NA <0.000100 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.00100 Fluorene NE 0.29 NE <0.0000500 0.0000115 J <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Naphthalene NE 0.00017 NE <0.000250 0.0000245 J <0.000250 NA <0.000250 NA <0.000250 NA NA NA NA NA <0.00100 <0.000250 0.0000254 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 Phenanthrene NE NE NE <0.0000500 0.0000115 J <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 Pyrene NE 0.12 NE <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA NA NA NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 1-Methylnaphthalene NE 0.0011 NE <0.000250 0.0000155 J <0.000250 NA <0.000250 NA <0.000250 NA NA NA NA NA NA <0.000250 0.000011 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA 2-Methylnaphthalene NE 0.036 NE <0.000250 0.0000224 J <0.000250 NA <0.000250 NA <0.000250 NA NA NA NA NA NA <0.000250 0.0000202 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA Other PAHs Varies Varies Varies ND ND ND NA ND NA ND NA NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA NA Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 0.0119 0.0135 <0.0100 0.0147 0.0126 NA 0.0153 0.0119 <0.0100 0.0069 J 0.00727 J <0.0100 0.0131 0.196 0.220 0.235 0.201 NA 0.234 0.253 0.238 0.214 0.264 0.233 Barium 2 3.8 2 0.288 0.312 0.327 0.327 0.319 NA 0.352 0.327 0.324 0.344 0.301 0.297 0.300 0.693 0.694 0.692 0.65 NA 0.709 0.703 0.705 0.687 0.715 0.646 Cadmium 0.005 0.0092 0.005 <0.00200 <0.00200 <0.000563 <0.000563 <0.00200 NA <0.00200 0.00155 J 0.00216 0.000668 J 0.000491 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 0.000674 J NA 0.00113 J 0.00129 J 0.000574 J <0.00200 <0.00200 <0.00200 Chromium 0.1 NE 0.1 <0.0100 0.00145 J <0.005 <0.005 <0.0100 NA <0.0100 0.00141 J 0.00174 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.00187 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 Iron NE 14 NE <0.100 <0.100 <0.0458 <0.0458 <0.100 NA <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 0.0553 J 0.108 0.0477 J NA 0.0934 J 0.371 0.0874 J 0.409 0.129 <0.100 Lead 0.015 0.015 0.015 <0.00500 <0.00500 <0.00295 <0.00295 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.00785 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.00716 Manganese NE 0.43 NE 0.0482 0.0403 0.0372 0.0379 0.0347 NA 0.0283 0.0324 0.0328 0.0286 0.039 0.0312 0.0388 0.0871 0.0928 0.0871 0.0701 NA 0.0906 0.078 0.0751 0.0703 0.103 0.0724 Selenium 0.05 0.1 0.05 <0.0100 <0.0100 <0.00735 <0.00735 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 0.00951 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.0120 <0.0100 <0.0100 <0.0100 0.0111 <0.0100 Silver 0.1 0.094 NE <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 Mercury 0.002 0.00063 0.002 <0.000200 <0.000200 <0.0001 <0.0001 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 Other Dissolved Metals Varies Varies Varies ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Notes: Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obtained from the Utah Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the United States Environmental Bold value indicates concentration exceeds Utah Groundwater Quality Standards. Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2019.Underlined and Italicized value indicates concentration exceeds USEPA RSLs. All concentrations expressed in milligrams per liter (mg/l).Shaded value indicates concentration exceeds USEPA MCLs. Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier associated Note that some RDLs exceed screening levels. with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V).** Lab error was not initially analzed until after hold time expired Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier quarters analyzed by USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels MW-5MW-1 MW-100 (MW-1 Duplicate) MW-1 MW-102xdup (MW-1 Duplicate) MW-1 mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L Page 1 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/17/2019 02/18/2020 02/18/2020 6/25/2020 09/22/2020 11/3/2020 09/22/2020 11/3/2020 03/22/2021 04/01/2022 10/27/2022 03/29/2023 09/09/2023 09/16/2019 02/20/2020 02/20/2020 6/22/2020 09/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 09/09/2023 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 NA <0.0500 <0.250 <0.0500 J3 J4 J <0.0500 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.0250 <0.00500 J3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.0250 <0.00500 J3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.0250 <0.00500 J3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.00100 0.00140 0.00146 0.00110 NA <0.00100 NA 0.0105 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 0.000211 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.0547 0.0543 0.0211 NA 0.000372 J NA 0.000394 J <0.00500 0.000372 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000307 J NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0500 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 J4 NA <0.00500 J4 <0.0250 <0.00500 J3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0500 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 J4 <0.00500 J4 <0.00500 NA <0.00500 NA <0.00500 <0.0250 C3 <0.00500 J3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 C3 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 C3 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 0.00132 0.00130 0.000593 J NA <0.00100 NA 0.000275 J <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA 0.00091 J <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 NA <0.00250 <0.0125 <0.00250 J3 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00500 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.0150 <0.00300 J3 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 0.000555 <0.00300 <0.00300 0.00280 <0.00300 NA <0.00300 NA 0.000206 B, J 0.000262 0.000858 B 0.000562 B <0.000400 0.00191 <0.00300 <0.00300 <0.00300 <0.00300 NA 0.000453 0.00138 B 0.000424 B 0.000336 J <0.000400 <0.000400 NA NA NA NA NA NA NA NA NA <0.001 0.000272 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 0.000303 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 0.000323 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 0.000266 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.00100 0.000209 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.00100 0.000174 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 0.000838 J <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 <0.00100 J4 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000303 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000323 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000209 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000266 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000272 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000174 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 J3 <0.0000500 <0.000200 NA <0.000200 NA <0.000100 <0.000200 0.000122 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 J3 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000207 J .0000293 B J J3 <0.000250 <0.000500 NA <0.000500 NA <0.000250 <0.000500 <0.00500 <0.00500 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 0.0000104 J 0.0000109 J J3 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.0000500 <0.000100 0.000107 J <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000100 J 0.0000107 J J3 <0.000250 <0.000500 NA <0.000500 NA <0.000250 <0.000500 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000187 J 0.0000140 J <0.000250 <0.000500 NA <0.000500 NA <0.000250 <0.000500 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND ND NA ND NA ND ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.268 0.220 0.204 0.247 0.297 NA 0.298 NA 0.324 0.272 O1 0.299 O1 0.297 0.301 0.231 0.163 0.162 0.223 0.200 NA 0.173 0.234 0.146 0.242 0.18 0.214 0.094 0.0913 0.0906 0.102 0.1 NA 0.0999 NA 0.105 0.0883 O1 0.098 O1 0.0617 0.0704 0.308 0.310 0.310 0.397 0.312 NA 0.310 0.408 0.307 0.426 0.326 0.327 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000591 J 0.000725 J <0.00200 <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 0.00149 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 0.00353 J <0.0100 <0.0100 <0.0100 0.444 0.367 0.302 0.685 0.616 NA 0.619 NA 0.599 0.481 0.571 0.162 0.182 B 0.124 0.0470 J 0.0521 J 1.660 0.167 NA 0.0652 J 1.750 0.100 1.880 0.504 0.289 <0.00500 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 0.00773 <0.00500 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.00736 <0.0100 0.00703 J 0.00967 J 0.00513 J 0.0122 NA 0.00785 J NA 0.00736 J 0.0073 J 0.00695 J <0.0100 <0.0100 0.0281 0.0324 0.0329 0.0347 0.0311 NA 0.0324 0.0343 0.0297 0.033 0.0296 0.0295 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.00821 J NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 NA <0.000200 <0.000200 <0.000200 J6 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND NA ND NA ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND MW-7 MW-7 DUP-2 (MW-7 Duplicate)MW-8 DUP-1 (MW-7 Duplicate) DUP-2 (MW-8 Duplicate) MW-7 MW-8 mg/L mg/L mg/L mg/L mg/L Page 2 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/16/2019 09/16/2019 2/20/2020 6/23/2020 09/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/24/2022 03/28/2023 09/09/2023 10/2/2019 02/18/2020 02/18/2020 6/25/2020 09/22/2020 11/3/2020 03/22/2021 10/5/2021 04/04/2022 10/26/2022 03/29/2023 09/12/2023 09/12/2023 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.500 <0.0500 J4 <0.0500 <0.0500 <0.0500 NR <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 J4 <0.0500 <0.0500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NR NA NA NA NA <0.000500 NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 C3 <0.00500 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 0.00209 0.00205 NR 0.00209 NA 0.00208 0.00192 0.00273 0.00382 0.00413 0.00542 0.00371 0.00445 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.000305 J <0.00100 <0.0100 <0.00100 <0.00100 0.0323 0.0308 NR 0.0337 NA 0.0203 0.0208 0.0244 0.0341 0.0326 0.0501 0.0355 0.0357 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 0.000223 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.100 <0.0100 <0.0100 <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.100 <0.0100 <0.0100 <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 NR <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 J NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.000202 J <0.0100 <0.00100 <0.00100 0.00344 0.00552 NR 0.00433 NA 0.00211 0.00186 0.00272 0.00165 0.000798 J 0.00142 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.0250 <0.00250 <0.00250 <0.00250 <0.00250 NR <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 NR <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.0300 <0.00300 <0.00300 <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.00122 0.00147 <0.00300 <0.00300 <0.00300 NA <0.000400 0.000296 J <0.000400 0.000433 <0.000400 <0.000424 0.0154 0.0115 0.0141 0.0182 0.0107 NA 0.0147 0.0000447 0.0155 0.0146 0.0178 0.0184 0.0119 B NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NR NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.00300 NA NA NA NA <0.00300 <0.00300 NR <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.0100 NA NA NA NA <0.0100 <0.0100 NR <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.000192 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.000288 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000259 J <0.000192 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 0.00000962 J <0.000480 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.000014 J <0.000480 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.000023 J <0.000192 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND ND NA ND NA NA NA NA NA NA 0.281 0.291 0.223 0.254 0.302 NA 0.284 0.310 0.324 0.320 0.247 0.332 0.0309 <0.0100 0.00911 0.0160 0.00866 J NA 0.0203 0.00725 J 0.0174 0.0203 <0.0100 0.0154 <0.0100 0.281 0.272 0.333 0.358 0.225 NA 0.254 0.219 0.24 0.273 0.221 0.257 0.427 0.172 0.171 0.203 0.185 NA 0.220 0.186 0.264 0.232 0.344 0.344 0.339 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.0007 <0.0007 <0.00200 NA 0.000541 J 0.000495 J 0.000612 J 0.000517 J <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00149 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0400 <0.0400 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00189 J <0.0100 <0.0100 <0.0100 <0.100 <0.100 0.174 0.737 0.114 NA 0.289 0.114 0.412 1.02 0.134 <0.0100 <0.100 <0.100 NR <0.100 <0.100 NA <0.100 <0.100 <0.100 0.172 <0.100 <0.100 <0.100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.00647 <0.00500 <0.00500 <0.00200 <0.00200 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.0224 0.0211 0.0229 0.0282 0.0132 NA 0.0245 0.00911 J 0.0105 0.00907 J 0.0101 0.0149 0.118 0.224 NR 0.267 0.276 NA 0.294 0.329 0.367 0.4 0.497 0.485 0.477 <0.0100 <0.0100 0.00897 J <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00200 <0.00200 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 J6 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.0000900 <0.0000900 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND mg/L mg/L mg/L mg/L MW-9 MW-10B MW-10B (UDEQ/DERR Split Sample) DUP-1 (MW-9 Duplicate)MW-9 mg/L MW-10B DUP (MW-10B Duplicate) Page 3 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/19/2019 6/25/2020 09/22/2020 11/3/2020 03/22/2021 10/5/2021 04/04/2022 04/04/2022 10/25/2022 03/29/2023 09/19/2019 02/19/2020 6/23/2020 09/24/2020 11/4/2020 03/23/2021 10/8/2021 03/30/2022 10/26/2022 03/28/2023 09/09/2023 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.500 <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 J3 NA <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 <0.00100 <0.00100 NA <0.00100 <0.00100 0.000122 J <0.0100 <0.00100 0.0000989 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.00131 J NA 0.00119 J 0.000291 J 0.000681 <0.0500 0.000429 J 0.00111 J <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.0148 NA 0.0194 0.00624 0.0195 0.00435 J 0.00489 0.0169 0.0131 <0.00100 0.000635 J 0.000716 J 0.00121 NA 0.000925 J 0.00136 0.0173 0.00138 <0.00100 <0.00100 <0.00100 0.00132 J NA 0.00160 <0.00100 0.00190 <0.0100 0.000527 J 0.00126 0.00106 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.222 1.100 NA 1.390 0.791 1.280 E 0.248 0.303 1.02 0.819 <0.00100 <0.00100 0.000307 J 0.000816 J NA 0.00113 0.00297 0.215 0.00329 <0.00100 0.00130 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000222 J <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.100 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J3 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.0500 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.000500 0.000309 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA 0.000892 J <0.00100 0.00126 <0.0100 0.000234 J 0.000723 J <0.00100 <0.00100 <0.00100 0.000208 J <0.00100 NA 0.000328 J 0.000727 0.00281 0.000725 J <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA 0.000474 J 0.000347 J 0.000604 <0.0100 <0.00100 0.000595 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.000418 J <0.00100 <0.00100 <0.00100 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.0250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.0100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.00128 J NA 0.00151 0.000756 J 0.00199 <0.0100 <0.00100 0.00119 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.000360 J <0.00100 <0.00100 <0.00100 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.0300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 0.201 0.558 0.777 NA 0.183 0.492 0.146 0.151 0.455 0.428 E 0.00236 <0.00300 0.000666 <0.00300 NA 0.00210 0.00399 B 0.00142 B 0.00559 0.000822 0.00141 NA NA NA NA NA <0.0100 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA NA NA NA <0.0100 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.0100 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.0100 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.000404 J <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0100 <0.0100 NA <0.0100 <0.0100 0.000175 J <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.000200 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA 0.0000255 J NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.000500 <0.00100 <0.00500 <0.00500 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA 0.0000296 J NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.000100 <0.00100 <0.00105 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.000500 NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.000500 NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA ND ND ND NA ND NA ND NA NA NA ND ND ND ND NA ND NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.013 <0.0100 <0.0100 0.00551 J <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.250 0.0733 0.0704 NA 0.0412 0.0617 0.0949 0.0979 0.127 0.1 0.178 0.147 0.0707 0.0665 NA 0.0842 0.0714 0.0915 0.076 0.0936 0.0859 <0.00200 <0.00200 0.000623 J NA 0.000603 J 0.000737 J <0.00200 <0.00200 0.0007 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000718 J 0.000613 J 0.00101 J 0.000779 J <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 0.00327 J 0.00405 J 0.00149 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 0.0023 J <0.0100 <0.0100 <0.0100 <0.0100 <0.100 <0.100 <0.100 NA 0.0251 J <0.100 <0.100 <0.100 0.0221 J <0.100 <0.100 <0.100 <0.100 <0.100 NA <0.100 <0.100 0.0186 J <0.100 <0.100 <0.100 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 0.00337 J <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.0060 <0.00600 <0.00600 <0.00600 0.259 0.372 0.305 NA 0.124 0.189 0.00114 J <0.0100 0.159 0.184 0.147 0.332 0.262 0.180 NA 0.155 0.158 0.094 0.153 0.0687 0.141 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.0123 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 0.0178 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND NA ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND MW-12SMW-11 MW-11 (P&A 6-2023) MW-119XDUP (MW-11 Duplicate) Page 4 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/19/2019 09/19/2019 02/19/2020 6/23/2020 09/24/2020 11/4/2020 03/23/2021 10/8/2021 3/30/2022 10/26/2022 03/28/2023 09/09/2023 09/20/2019 02/18/2020 6/24/2020 6/24/2020 09/23/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 09/09/2023 <0.0500 <0.01 <0.0500 <0.0500 <0.0500 J3 NA <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 J4 <0.0500 0.0371 J <5.00 <5.00 NA**NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA 0.000225 J 0.000174 J 0.000152 J 0.000130 J 0.000196 J <0.00100 <0.00100 NA NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA NA 0.000115 J NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 0.000327 J <0.00500 <0.00500 <0.00500 <0.00500 <0.500 <0.500 NA NA <0.00500 <0.00500 <0.00250 0.00158 J 0.000199 J <0.00500 <0.00500 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 0.00279 J <0.500 <0.500 NA NA 0.00768 0.00600 0.00592 0.0042 J 0.00439 J 0.00538 0.00603 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.500 <0.500 NA NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.0125 <0.00100 <0.00100 <0.00100 0.0531 0.229 0.0910 J NA NA 0.157 0.188 0.188 E 0.204 0.196 0.188 <0.500 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.00204 <0.100 <0.100 NA NA 0.0114 0.00945 0.0104 0.00865 0.00781 0.00855 0.0103 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.153 <0.00100 <0.00100 <0.00100 3.070 9.160 3.340 NA NA 7.870 7.310 7.670 Q 6.190 5.99 6.82 8.46 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA 0.000524 J 0.000538 J 0.000517 0.000512 J 0.000542 J <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 0.000124 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.000500 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.01 <0.0100 <0.0100 <0.0100 J3 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 0.00548 J <1.00 <1.00 NA NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.500 <0.500 NA NA 0.000545 J J4 0.000527 J 0.000561 J 0.00495 J 0.000597 J <0.00500 <0.00500 <0.0100 <0.005 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <1.00 <1.00 NA NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.002 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.500 J4 <0.500 NA NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 0.000303 J <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 J4 <0.000500 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA 0.000283 J <0.00100 J4 <0.000500 0.000679 J <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.00184 <0.00100 <0.00100 <0.00100 0.117 0.270 0.0878 J NA NA 0.219 0.194 0.173 Q, E 0.114 0.124 0.144 0.138 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.000635 J <0.100 <0.100 NA NA 0.00334 0.00275 0.00248 0.00246 0.00213 0.00247 0.00318 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.000277 J <0.00100 <0.00100 <0.00100 0.0027 <0.100 0.0192 B, J, J4 NA NA 0.00897 0.00794 0.00777 0.00551 0.00577 0.00789 0.00817 <0.00250 <0.002 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.250 <0.250 NA NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.100 <0.100 NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.002 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.000500 0.000333 J <0.00100 <0.00100 <0.00100 0.0223 <0.100 0.0969 J NA NA 0.0444 0.0990 0.0701 0.0913 0.122 0.0686 0.0699 <0.00300 <0.001 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.300 <0.300 NA NA 0.000195 J <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 0.00189 0.00054 <0.00300 <0.00300 <0.00300 NA 0.00329 0.00334 B 0.298 B J <0.00400 <0.000444 <0.000420 0.0972 0.582 0.980 0.523 0.887 NA 0.925 E 0.504 0.801 E 1.08 0.871 E 0.798 E NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00105 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 <0.0100 <0.0147 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0118 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00105 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00105 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00105 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00105 NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00105 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 0.00288 J <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00354 0.00129 J <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 0.000731 J <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.000359 J <0.00300 <0.00300 <0.00315 <0.00354 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00354 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.000359 J <0.00333 <0.00300 <0.00300 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.0100 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.0100 <0.00300 <0.0147 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0118 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0147 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 0.000839 J <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.00100 <0.000250 <0.0147 0.0000271 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00105 <0.000810 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 0.00000992 J <0.0000500 0.0000202 J <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0147 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00105 <0.000162 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.000250 <0.0147 0.0000156 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA <0.000810 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA <0.000250 <0.0147 0.0000239 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA <0.000810 0.0000101 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA ND ND ND ND ND NA ND NA NA NA NA NA ND ND ND ND ND NA ND NA NA NA NA NA 0.131 0.119 0.164 0.200 0.189 NA 0.210 0.199 0.211 0.204 0.164 0.192 0.0268 <0.0100 <0.0100 0.00495 J 0.00508 J NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.206 0.196 0.192 0.170 0.121 NA 0.146 0.12 0.142 0.153 0.145 0.134 0.178 0.0378 0.0375 0.0386 0.0351 NA 0.0265 0.0314 0.0265 0.0278 0.023 0.0247 <0.00200 <0.0007 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 0.000866 J 0.000600 J 0.000946 J NA 0.00132 J 0.000959 J 0.000964 J 0.000763 J <0.00200 <0.00200 <0.0100 <0.02 <0.0100 <0.0100 <0.0100 NA <0.0100 0.00245 J 0.00165 J 0.00332 J <0.0100 <0.0100 0.00398 J 0.0022 J 0.0156 0.0164 <0.0100 NA 0.00142 J <0.0100 0.00436 J 0.00281 J <0.0100 <0.0100 <0.100 0.134 0.248 1.83 0.224 NA 0.529 0.120 0.246 0.781 0.129 <0.100 <0.100 0.0204 J <0.100 <0.100 <0.100 NA <0.100 <0.100 0.353 0.0358 J <0.100 <0.100 <0.00500 <0.002 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.00772 <0.00500 <0.00500 <0.0300 <0.0300 <0.0300 NA <0.0300 <0.00600 <0.00600 <0.00600 <0.00600 0.00751 0.0719 0.0636 0.0560 0.0524 0.0223 NA 0.0174 0.0222 0.0174 0.0131 0.0467 0.039 0.0671 2.180 0.358 0.351 2.300 NA 0.661 1.450 0.534 0.909 0.650 0.896 <0.0100 <0.002 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00839 J <0.0100 <0.0100 0.0155 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.018 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.00009 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND mg/L mg/L mg/L MW-12D mg/L mg/L MW-13SMW-13S MW-103xdup (MW-13S Duplicate) MW-12D MW-12D (UDEQ/DERR Split Sample) Page 5 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/19/2019 0218/2020 6/24/2020 09/23/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 09/09/2023 09/20/2019 02/19/2020 6/24/2020 09/24/2020 11/5/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 09/12/2023 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 0.125 J <0.0500 <0.0500 <0.0500 0.0331 J <12.5 <12.5 <25.0 NA <1.25 <0.625 <1.25 J4 <5.00 J4 <0.500 <1.00 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.000356 J <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 NA NA NA NA NA NA 0.000118 J NA NA NA NA NA NA NA NA NA NA 0.0102 J <0.0250 NA NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 0.00203 J <0.00500 <0.00500 <0.00500 <0.00500 <1.25 <1.25 <2.50 NA <0.125 <0.0625 <0.125 <0.500 <0.0500 <1.00 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 0.00202 J <1.25 <1.25 <2.50 J4 NA <0.125 0.00412 J 0.00339 J <0.500 <0.0500 <0.100 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <1.25 <1.25 <2.50 NA <0.125 C3 <0.0625 <0.125 <0.500 <0.0500 <0.100 <0.00100 0.000902 J 0.000623 J NA 0.000919 J 0.00092 J 0.000896 0.0388 0.00103 0.00103 <0.00100 3.92 3.85 4.08 5.75 NA 4.010 6.750 4.720 4.07 4.590 3.730 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.000737 J <0.00100 <0.00100 <0.00100 0.0916 0.135 J 0.140 J <0.500 NA 0.111 0.147 0.133 0.156 C5 0.172 0.16 0.00291 0.0359 0.0269 NA 0.0193 0.0407 0.0267 0.277 0.0171 0.0206 0.0117 25.200 40.400 68.300 76.400 NA 20.700 30.400 30.700 52.6 <0.0100 46.2 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.0079 <0.250 <0.250 <0.500 NA 0.00747 J 0.0138 0.0107 J 0.0312 J 0.0186 <0.0200 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 C3 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.000656 J <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 0.005 J <0.0100 <0.0100 <0.0100 <0.0100 <2.50 <2.50 <5.00 NA <0.250 <0.125 <0.250 <1.00 <0.100 <0.200 <0.00500 <0.00500 <0.00500 NA <0.00500 J4 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 0.0807 <1.25 <1.25 <2.50 NA 0.032 J 0.0184 J <0.125 <0.500 <0.0500 <0.100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 0.001 J <0.0100 <0.0100 <0.0100 <0.0100 <2.50 <2.50 <5.00 NA <0.250 <0.125 <0.250 <1.00 <0.100 <0.200 <0.00500 <0.00500 J4 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <1.25 <1.25 <2.50 NA <0.125 <0.0625 <0.125 <0.500 <0.0500 <0.100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.000192 J <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 C3 0.0799 <0.0250 <0.100 0.125 0.132 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.0375 <0.250 <0.250 <0.500 NA 0.0323 0.0166 0.0266 0.0456 J 0.0402 0.0541 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 0.000605 J <0.00100 <0.00100 <0.00100 0.0456 <0.250 0.0902 J <0.500 NA 0.0320 0.0400 0.0378 0.0535 J 0.0694 0.0411 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0250 <0.0250 <0.100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.00322 <0.00100 <0.00100 <0.00100 0.260 0.307 0.418 0.655 J4 NA 0.463 0.313 0.247 0.286 C5 0.296 0.268 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.000362 J <0.00100 <0.00100 <0.00100 0.0541 <0.250 0.0949 J <0.500 NA 0.0622 0.0696 0.0603 0.0802 J 0.0909 0.0961 <0.00100 <0.00100 <0.00100 J4 NA 0.00037 J <0.00100 <0.000500 0.000701 J <0.00100 <0.00100 <0.00100 0.0151 <0.250 0.204 B, J, J4 0.19 J NA 0.0389 0.0431 0.0515 0.0796 J 0.109 0.111 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.625 <0.625 <1.25 NA <0.0625 <0.0625 <0.0625 <0.250 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.500 NA <0.0250 <0.0125 <0.0250 <0.100 <0.0100 <0.0200 <0.00100 0.00322 0.00292 NA 0.00138 0.00217 0.000570 0.001970 0.000931 J 0.001560 <0.00100 0.00726 <0.250 <0.250 <0.500 NA <0.0250 C3, J4 0.00954 J 0.0121 J <0.100 0.0134 <0.0200 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.750 <0.750 <1.50 NA <0.0750 <0.0375 <0.0250 <0.300 <0.0300 <0.0600 0.00172 <0.00300 0.00237 J <0.00300 NA 0.00488 0.000952 0.00365 0.00320 BQ 0.00175 B 0.00148 B 0.00105 0.0246 0.0392 0.0745 0.102 NA 0.0479 0.0479 0.071 0.122 0.0854 0.0131 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA NA NA NA 0.000855 <0.00100 <0.00100 <0.00100 <0.500 <0.0500 <0.00100 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.000474 J <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 0.00153 J <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.000290 J <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.00107 J <0.00333 <0.00300 <0.00300 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 J4 <0.0100 <0.0100 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.000673 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.000584 J <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.000100 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 J4 <0.00100 <0.00100 0.0000152 J <0.0000500 <0.0000500 0.000019 J NA <0.0000500 NA <0.00100 <0.00111 J4 <0.00100 <0.00100 <0.000250 0.0000455 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 0.0000915 J <0.0000500 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.500 <0.0500 <0.00100 <0.0000500 0.0000103 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 0.0000171 J <0.000250 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.000250 0.0000179 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA 0.0000294 J <0.0000500 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA <0.000250 0.0000286 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA 0.0000468 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA NA ND ND ND ND NA ND ND NA NA NA NA 0.146 0.128 0.160 0.167 NA 0.185 0.186 0.143 0.32 0.205 0.254 <0.0100 0.0238 0.0175 0.0177 NA <0.0500 0.054 0.0246 0.0545 0.0264 0.0161 0.147 0.118 0.128 0.134 NA 0.115 0.132 0.219 0.159 0.138 0.140 0.989 0.885 0.847 0.834 NA 0.0253 0.0241 0.0200 0.0224 0.0189 0.0177 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.00277 J 0.00141 J 0.000992 J <0.00200 <0.00200 <0.00200 <0.0100 0.00232 J <0.0100 <0.0100 NA 0.00267 J 0.00160 J <0.0100 0.0015 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.0101 J 0.00221 J <0.0100 0.003 J <0.0100 <0.0100 <0.100 0.189 0.391 0.466 NA 0.121 0.422 0.0294 J 0.0637 J <0.100 <0.100 <0.100 0.0309 J <0.100 <0.100 NA <0.500 11.700 0.0639 J 4.810 <0.100 <0.100 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.0300 <0.0300 <0.0060 <0.00600 0.00765 0.006 0.0312 0.0544 0.0532 0.0551 NA 0.0456 0.0416 0.00579 J 0.00559 J <0.0100 <0.0100 1.390 2.380 2.520 2.570 NA 20.600 12.200 8.570 6.570 6.190 5.80 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 0.00801 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0500 0.0322 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.0250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 0.000125 J <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND NA ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND MW-14SMW-13D Page 6 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/20/2019 02/19/2020 6/24/2020 09/24/2020 11/5/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/12/2023 10/2/2019 02/20/2020 6/22/2020 09/23/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 10/25/2022 03/28/2023 <1.25 <0.500 <0.500 <0.0500 J3 NA <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 C3 <0.0500 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA 0.000735 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 J4 <0.00100 <0.125 <0.0500 <0.0500 0.0032 J NA 0.107 0.144 0.093 0.186 C5 0.168 0.221 <0.00500 0.000922 J <0.00500 NA 0.000604 J 0.00141 J 0.00115 J 0.000684 J 0.00153 J 0.00148 J <0.00500 <0.125 <0.0500 <0.0500 <0.00500 NA <0.00500 <0.000500 <0.0500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.125 <0.0500 <0.0500 <0.00500 NA <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 0.58 0.615 0.444 0.484 NA 0.175 0.173 0.230 0.19 0.218 0.132 0.00101 0.0152 0.0170 NA 0.014 0.0150 0.0137 0.0178 0.0177 0.0174 0.0189 <0.0250 <0.0100 <0.0100 <0.0200 NA 0.000922 J 0.000876 0.00315 0.000867 J 0.00125 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.180 0.108 0.0762 0.0729 NA 0.0352 0.0322 1.23 0.0282 0.0781 0.0141 0.00322 0.0643 0.0564 NA 0.0393 0.0483 0.0498 0.0572 0.0594 0.0577 0.0503 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 0.00034 J <0.00100 <0.00100 <0.00100 <0.00100 0.000799 J 0.000922 J NA 0.000579 J 0.000762 J 0.000833 0.00124 0.00109 0.00112 0.00126 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 C3 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 0.000187 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.100 <0.100 <0.0100 J3 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 C3 <0.0100 <0.125 <0.0500 <0.0500 <0.00500 NA <0.00500 <0.00250 <0.0500 0.000453 J <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.250 <0.100 <0.100 <0.0100 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 C3 <0.0100 <0.125 <0.0500 <0.0500 <0.00500 NA <0.00500 0.00157 J <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 J4 <0.00500 J4 <0.00500 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 0.00043 J NA <0.00100 <0.000500 J3 0.000433 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 0.000459 J 0.00134 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 J4 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J4 <0.00100 J4 <0.00100 0.779 0.382 0.198 0.130 J4 NA 0.000335 J <0.000500 0.0097 <0.00100 <0.00100 <0.00100 <0.00100 0.0160 0.0119 NA 0.00535 0.00546 0.00501 0.00575 0.000535 J 0.000484 J <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 <0.000500 0.0018 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000205 J NA <0.00100 <0.00100 0.000163 J <0.00100 <0.00100 J4 <0.00100 J4 <0.00100 <0.0250 <0.0100 <0.0100 J4 0.000452 J NA 0.000534 J 0.000315 J 0.00194 0.000249 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.000209 J 0.000263 J <0.00100 0.000198 J <0.00100 <0.0625 <0.0250 <0.0250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 0.000919 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 0.000372 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 <0.00100 NA <0.00100 0.000285 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0250 <0.0100 <0.0100 0.00330 NA 0.00539 0.00482 J3 0.00251 0.00598 0.00289 0.00258 <0.00100 <0.00100 <0.00100 NA 0.000398 J <0.00100 0.000242 J <0.00100 <0.00100 <0.00100 <0.00100 <0.0750 <0.0300 <0.0300 <0.00300 NA <0.00300 0.0018 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 0.00116 <0.00300 <0.00300 <0.00300 NA 0.0146 0.000744 0.000755 B 0.0005 B <0.000400 <0.000400 0.0216 0.133 0.220 0.286 V NA 0.205 E 0.161 E 0.208 0.18 E 0.185 0.187 NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00111 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00111 <0.00100 <0.00100 NA NA NA NA 0.000659 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 0.00154 J <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 0.000303 J <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.000715 J <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.000111 J <0.0100 J4 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 0.000156 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00333 <0.00300 <0.00300 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 0.00261 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0100 0.000627 J <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0111 <0.0100 <0.0100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 0.000106 J <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 0.000137 J <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00111 <0.00100 <0.00100 0.0000255 J 0.0000115 J <0.0000500 0.000018 J NA <0.0000500 NA <0.00100 0.000719 J J4 <0.00100 <0.00100 <0.0000500 0.0000119 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 0.000101 J 0.0000664 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 <0.000250 0.0000397 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00500 0.0000106 J 0.000012 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 0.00226 <0.00100 <0.00100 <0.0000500 0.0000165 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 0.000283 J <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00111 <0.00100 <0.00100 0.0000263 J 0.0000283 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA <0.000250 0.0000243 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA 0.0000476 J 0.0000392 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA <0.000250 0.0000405 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA ND ND ND ND NA ND NA NA NA NA NA 0.265 0.204 0.218 0.255 NA 0.284 0.324 0.349 0.36 0.36 0.362 0.188 0.0241 0.0540 0.0303 NA 0.0192 0.0589 0.0127 0.0547 0.0574 0.0174 0.168 0.151 0.129 0.113 NA 0.121 0.154 0.157 0.133 0.102 0.102 0.201 0.208 0.21 0.19 NA 0.209 0.222 0.200 0.216 0.216 0.204 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000642 J 0.000773 J 0.000567 J <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00142 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.244 0.372 0.217 0.0635 J NA 0.335 0.655 0.757 0.827 0.145 0.200 B <0.100 0.0205 J 1.03 <0.100 NA <0.100 1.300 <0.100 1.160 1.130 <0.100 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 0.00409 J 0.00508 J <0.00600 0.124 0.165 0.144 0.137 NA 0.149 0.162 0.126 0.122 0.108 0.0877 0.117 0.348 0.370 0.307 NA 0.327 0.302 0.303 0.284 0.281 0.253 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND NA ND ND ND NA NA ND ND ND ND NA ND ND ND ND ND ND MW-15 DUP-01 (MW-15 Duplicate) MW-14D MW-15 mg/L mg/L mg/L mg/L mg/L Page 7 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 10/2/2019 02/18/2020 6/24/2020 09/21/2020 11/4/2020 09/21/2020 11/4/2020 03/22/2021 10/9/2021 10/9/2021 04/04/2022 10/25/2022 03/29/2023 03/29/2023 09/12/2023 10/2/2019 02/20/2020 6/23/2020 09/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 <0.0500 <0.0500 <0.0500 NA <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0250 <0.0500 J4 J5 <0.0500 C3 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 J4 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.000500 <0.000500 NA NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.000159 J NA <0.00500 NA <0.00500 <0.00500 <0.000500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00100 0.00663 0.0078 NA 0.00842 NA 0.00778 0.00818 0.00693 Q 0.00713 Q 0.0111 0.0105 0.0167 0.0157 0.0128 <0.00100 0.000293 J <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.000608 J 0.000739 J NA <0.00100 NA <0.00100 <0.00100 0.00102 0.000950 0.001130 0.0009 J 0.001720 0.001770 0.00131 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0109 0.172 0.248 NA 0.222 NA 0.181 0.204 0.173 0.160 0.168 0.240 0.230 0.211 0.203 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.00178 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.00500 <0.00500 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<0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J4 <0.00100 <0.00100 0.00641 0.00657 NA 0.00506 NA 0.00339 0.00366 0.00356 0.00277 0.0026 0.000423 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000558 J NA 0.000405 J NA 0.000326 J <0.00100 0.000310 J 0.000273 J 0.000176 J 0.000224 J J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 .000203 B, J, J4 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00250 <0.00250 <0.00250 NA <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.000721 J 0.00104 NA 0.00126 NA 0.000965 J 0.000807 J 0.00124 0.00113 0.00143 0.00193 0.00209 0.00212 0.00259 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 0.00733 0.137 0.232 0.188 NA 0.19 NA 0.195 0.123 E 0.127 E 0.210 0.195 0.322 0.318 0.135 0.000438 0.00251 J 0.00333 <0.00300 NA 0.00282 <0.000400 0.00041 0.000383 J 0.00308 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 <0.00100 <0.0100 <0.0100 NA NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA <0.00100 <0.0100 <0.00100 <0.00100 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00100 NA NA NA NA NA <0.00100 <0.00100 <0.001 <0.00500 <0.00500 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.00195 J <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.000308 J <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 0.000525 J <0.0100 <0.00300 <0.00300 <0.00300 NA <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.000100 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000250 0.0000207 J <0.000250 <0.000250 NA <0.000250 NA <0.000250 NA NA <0.00100 <0.00500 <0.00500 <0.00500 <0.00100 <0.000250 0.0000312 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.0000500 0.00000983 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 0.00000867 J <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.0000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.000250 0.0000117 J <0.000250 <0.000250 NA <0.000250 NA <0.000250 NA NA NA NA NA NA NA <0.000250 0.0000123 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA <0.000250 0.0000194 J <0.000250 <0.000250 NA <0.000250 NA <0.000250 NA NA NA NA NA NA NA <0.000250 0.0000226 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA ND ND ND ND NA ND NA ND NA NA NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA 0.202 0.0464 0.0612 0.0771 NA 0.0959 NA 0.0787 0.104 0.106 0.0927 0.125 0.0707 0.0776 0.0905 0.0228 <0.0100 0.00657 J 0.0156 NA 0.00911 J 0.0291 0.0224 B 0.0374 0.0132 0.219 0.187 0.191 0.173 NA 0.171 NA 0.178 0.177 0.174 0.174 0.178 0.18 0.183 0.171 0.205 0.115 0.0886 0.101 NA 0.124 0.138 0.149 0.155 0.135 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 NA <0.00200 <0.00200 <0.00200 0.000550 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 0.000499 J <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 0.00203 J 0.00183 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.100 0.0741 J 0.0742 J 0.0929 J NA 0.133 NA <0.100 NA NA 0.205 B 0.538 <0.100 <0.100 <0.100 <0.100 0.0262 J <0.100 <0.100 NA <0.100 <0.100 0.0351 J 0.681 <0.100 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 0.00478 <0.00600 0.0565 0.163 0.147 0.146 NA 0.136 NA 0.0901 NA NA 0.151 0.127 0.159 0.155 0.152 0.360 0.267 0.343 0.160 NA 0.328 0.136 0.180 0.13 0.255 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.010 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.0175 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.0100 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND NA ND NA ND ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND MW-17 mg/L mg/L mg/L mg/L MW-16 mg/L MW-160DUP (MW-16 Duplicate) MW-16 DUP MW-16 (MW-16 Duplicate) DUP-1 (MW-16 Duplicate)MW-16 Page 8 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/09/2023 10/2/2019 02/20/2020 6/23/2020 09/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 09/09/2023 10/11/2021 04/04/2022 10/25/2022 03/29/2023 09/12/2023 10/11/2021 04/04/2022 10/26/2022 03/29/2023 9/12/2023 10/11/2021 04/04/2022 10/26/2022 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 J4 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 0.013 J <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.000500 NA NA NA NA <0.000500 NA NA NA NA <0.000500 NA NA NA NA <0.000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 0.000205 J <0.00500 <0.00500 <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 0.000512 J 0.000407 J <0.00100 <0.00100 0.000916 0.00521 0.00656 0.00705 0.00805 <0.000500 0.000713 J 0.00081 J <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 0.000212 J <0.00100 <0.00100 <0.00100 <0.000500 0.000165 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.000447 J <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 0.00103 0.00103 0.00123 0.0012 0.00250 0.03680 0.04490 0.05400 0.0553 0.00104 0.0401 0.0504 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 0.000136 J <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <0.0100 0.00166 J <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 C3 <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 0.000486 J <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 J4 <0.00500 <0.00500 <0.00250 J4 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <0.00250 J4 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <0.00250 J4 <0.00500 C3 J3 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 0.000554 J <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 0.000162 J 0.00100 J 0.000674 J <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 0.000291 J 0.000448 J <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 0.00257 0.00236 <0.00300 <0.00300 <0.00300 NA 0.00163 0.00121 0.00374 B 0.0014 0.00185 0.00248 NA 0.00135 0.000583 0.00159 B 0.00299 B 0.0216 BQ NA 0.113 0.106 0.149 E 0.176 NA 0.0128 0.0133 <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.001 <0.001 <0.001 <0.00100 <0.00100 <0.00100 <0.00100 <0.001 <0.001 NA NA NA <0.001 <0.001 NA <0.00100 <0.001 <0.001 NA <0.00100 NA NA NA NA <0.001 <0.001 <0.001 0.0000636 J <0.00100 <0.00100 <0.00100 <0.001 <0.001 NA NA NA <0.001 <0.001 NA <0.00100 <0.001 <0.001 NA <0.00100 NA NA NA NA <0.001 <0.001 <0.001 0.0000836 J <0.00100 <0.00100 <0.00100 <0.001 <0.001 NA NA NA <0.001 <0.001 NA <0.00100 <0.001 <0.001 NA <0.00100 NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 <0.00100 <0.00100 NA NA NA <0.00100 <0.00100 NA <0.00500 <0.00100 <0.00100 NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.00300 <0.00300 0.00311 0.00311 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA 0.0000636 J <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA 0.0000836 J <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA 0.000104 J <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.000250 0.0000267 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00500 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA <0.00100 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA 0.000111 J <0.00100 <0.00100 <0.00100 NA <0.00100 NA NA NA NA <0.00100 NA <0.00100 NA <0.00100 NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000144 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 0.0100 0.00798 J NA <0.0100 <0.0100 0.0129 B <0.0100 <0.0100 <0.0100 0.0801 0.057 0.065 0.0425 0.0394 0.00561 J 0.122 0.156 0.114 0.0914 0.360 0.244 0.323 0.102 0.183 0.196 0.172 0.169 NA 0.157 0.184 0.162 0.15 0.148 0.146 0.208 0.253 0.253 0.223 0.208 0.104 0.322 0.312 0.24 0.253 0.352 0.45 0.446 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 0.000567 J <0.00200 <0.00200 <0.00200 <0.00200 0.000513 J <0.00200 <0.00200 <0.00200 <0.00200 0.000640 J <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.00195 J <0.0100 <0.0100 <0.0100 <0.0100 0.004 J <0.0100 <0.0100 <0.0100 <0.0100 0.00148 J <0.100 <0.100 <0.100 0.0623 J <0.100 NA <0.100 <0.100 <0.100 0.344 <0.100 <0.100 0.0867 J 0.0741 B J 0.47 <0.100 <0.100 <0.100 0.0198 B J 0.802 <0.100 <0.100 0.133 <0.100 1.02 0.00601 <0.00500 <0.00500 <0.00500 0.00365 J NA <0.00600 <0.00600 <0.00600 0.00427 J <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.0300 <0.00600 <0.00600 <0.00600 0.211 0.0808 0.153 0.359 0.317 NA 0.270 0.260 0.27 0.151 0.118 0.168 0.0279 0.229 0.196 0.178 <0.0100 0.0193 0.183 0.137 0.139 0.132 0.112 0.267 0.21 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.0127 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND mg/L mg/L mg/L MW-18 MW-20 MW-21 mg/L mg/L MW-19 Page 9 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 10/26/2022 03/29/2023 10/11/2021 04/04/2022 10/26/2022 03/29/2023 09/18/2019 2/28/2020 6/25/2020 09/21/2020 11/3/2020 03/22/2021 10/11/2021 04/05/2022 10/24/2022 03/29/2023 09/18/2019 02/18/2020 6/25/2020 09/22/2020 11/3/2020 03/22/2021 03/22/2021 <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0500 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 NA #N/A 0.000238 J NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 J5 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 C3 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 0.000715 J <0.00100 0.000250 J 0.000112 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 0.044 0.0346 0.00224 0.00137 0.000399 J <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000213 J <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00250 J4 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 0.00402 J <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00500 C3 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 C3 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 C3 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 0.0134 0.00508 NA 0.00351 0.00687 B 0.004 0.00874 <0.000400 <0.00300 <0.00300 <0.00300 NA 0.000168 B, J NA 0.000368 J 0.000567 <0.000400 <0.000400 <0.00300 <0.00300 <0.00300 NA 0.000296 B J 0.000209 B, J NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA 0.000154 J <0.00100 NA NA NA NA NA NA NA NA <0.001 NA NA NA NA NA NA NA NA NA NA NA NA 0.0000805 J <0.00100 NA NA NA NA NA NA NA NA <0.001 NA NA NA NA NA NA NA NA NA NA NA NA 0.000120 J <0.00100 NA NA NA NA NA NA NA NA <0.001 NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.324 0.054 0.0879 0.122 0.214 0.0488 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.0064 J <0.0100 0.0511 0.0150 0.0473 0.0358 NA 0.0172 0.0157 0.447 0.122 0.364 0.116 0.118 0.0739 0.169 0.159 0.169 0.168 NA 0.142 0.158 0.159 0.16 0.158 0.222 0.190 0.252 0.225 NA 0.211 0.211 <0.00200 <0.00200 <0.00200 0.0013 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 0.000506 J <0.00200 0.000578 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 0.00239 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.00181 J <0.0100 <0.0100 NA <0.0100 <0.0100 1.02 <0.100 0.0409 J 0.027 B J 3.67 <0.100 <0.100 <0.100 <0.100 <0.100 NA <0.100 <0.100 0.0424 B J 0.0586 J <0.100 <0.100 0.0223 J <0.100 <0.100 NA <0.100 <0.100 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 0.00310 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 0.213 0.0308 0.136 0.24 0.234 0.0639 0.405 0.0643 0.298 0.371 NA <0.0100 0.387 0.0108 0.344 <0.0100 0.497 0.423 0.453 0.451 NA 0.401 0.403 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 0.0156 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 J6 <0.000200 J6 <0.000200 NA <0.000200 <0.000200 ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND NA ND ND GMW-2 DUP-1 (GMW-2 Duplicate) MW-22 GMW-1DUP-2 (MW-21 Duplicate)MW-21 Page 10 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 10/5/2021 04/05/2022 10/26/2022 03/29/2023 09/17/2019 02/19/2020 6/23/2020 09/22/2020 11/4/2020 03/22/2021 10/9/2021 04/01/2022 10/24/2022 03/29/2023 09/17/2019 09/17/2019 02/20/2020 6/22/2020 09/23/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.0500 C3 <0.0500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 J3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 0.00122 J <0.00500 NA <0.00500 0.000399 J 0.000640 J 0.000552 J 0.000943 J <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 J3 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 J3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000198 J NA 0.000196 J 0.000216 J, J3 0.000222 J, Q 0.000243 J 0.000188 J <0.00100 0.00754 0.00579 0.00501 0.00540 NA 0.00441 0.00439 0.00380 0.00540 0.00548 0.00545 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000346 J <0.00100 <0.00100 <0.00100 0.00265 0.00362 0.00249 NA 0.00238 0.00217 0.00224 Q 0.00241 0.00205 0.00233 0.126 0.105 0.122 0.0916 NA 0.0807 0.0854 0.0950 0.1390 0.1810 0.0808 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000137 J NA <0.00100 0.000130 J <0.000500 0.000186 J 0.000308 J <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 J3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.00250 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 0.00983 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000738 J 0.000411 J NA 0.000423 J 0.000492 J 0.000601 0.000710 J 0.000771 J <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 J4 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J4 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 0.0356 0.0276 0.0350 0.0288 NA 0.0215 0.0237 0.0221 0.0297 0.0305 0.0254 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 0.000223 J J4 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.000329 J NA <0.00100 0.000254 J 0.000333 J 0.000302 J 0.000356 J <0.00100 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 J3 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 0.000464 0.000764 0.00174 B 0.000706 B 0.00932 0.00325 0.00519 0.00695 NA 0.00586 0.0105 0.00721 0.00565 0.0104 0.0628 0.0646 0.0426 0.0527 0.0478 NA 0.0537 0.0381 0.0576 0.0632 0.0517 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00105 <0.00100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00105 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00105 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00105 <0.00100 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00105 <0.00100 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00105 <0.00100 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 <0.001 <0.00105 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00315 <0.00300 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0105 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00105 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 <0.000250 0.0000107 J <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND ND NA ND NA NA NA NA 0.0336 0.0142 0.107 0.015 0.0979 0.0937 0.127 0.103 NA 0.0844 0.135 0.0971 B 0.18 0.0675 <0.0100 <0.0100 <0.0100 0.00605 J 0.00581 J NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.226 0.209 0.242 0.223 0.204 0.189 0.224 0.198 NA 0.17 O1 0.236 0.160 0.232 0.169 0.132 0.134 0.136 0.125 0.138 NA 0.116 0.127 0.137 0.117 0.135 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000501 J 0.000856 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000591 J 0.000879 J <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 0.00242 J <0.0100 0.00276 J <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.100 <0.100 3.03 <0.100 <0.100 0.0456 J 1.740 0.0664 J NA 0.0302 J NA 0.101 2.24 <0.100 <0.100 <0.100 <0.100 <0.100 <0.100 NA <0.100 <0.100 <0.100 0.0277 J <0.100 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00500 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 0.00353 J <0.00600 0.476 0.391 0.438 0.355 0.225 0.250 0.247 0.223 NA 0.268 O1 NA 0.269 0.225 0.26 0.0505 0.0509 0.00438 J 0.0151 <0.0100 NA 0.00394 J 0.00731 J 0.0207 0.033 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 J6 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND GMW-4 mg/L mg/L mg/L mg/L GMW-4 DUP-2 (GMW-4 Duplicate) GMW-2 GMW-3 mg/L Page 11 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/9/2023 09/16/2019 02/19/2020 6/22/2020 09/22/2020 11/4/2020 03/19/2021 10/7/2012 03/30/2022 10/24/2022 03/28/2023 09/09/2023 09/09/2023 09/18/2019 02/18/2020 6/25/2020 09/22/2020 11/3/2020 03/23/2021 10/9/2021 03/31/2022 10/27/2022 <0.0500 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.250 <0.0500 <0.0500 <0.0500 <0.0500 <0.500 <0.500 NA 0.116 <0.0500 <0.0250 <0.0500 <0.0500 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 NA NA NA NA NA NA NA <0.000500 NA NA N/A N/A N/A NA NA NA NA NA NA <0.000500 NA NA <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.00500 <0.0500 <0.0500 J3 NA <0.00500 0.00119 J 0.00101 J 0.000774 J 0.000804 J <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.00500 <0.0500 0.00151 J NA 0.000152 J 0.000816 J 0.000798 0.000791 J 0.000781 J <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.00500 <0.0500 <0.0500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 0.00484 <0.00100 0.000309 J 0.000289 J NA 0.000347 J 0.000266 J 0.000301 J 0.000310 J <0.00500 <0.00100 <0.00100 <0.00100 1.98 1.49 1.96 V NA 0.102 2.09 2.120 Q 2.16 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 0.0121 0.00979 J 0.0131 NA 0.000917 J 0.013 0.0142 0.0133 0.0143 0.130 0.00130 <0.00100 0.000374 J NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 1.180 1.040 1.110 V NA 0.00045 J 0.887 1.090 Q 0.965 0.778 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 0.000169 J 0.000220 J <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0500 <0.0100 <0.0100 <0.0100 <0.0100 <0.100 <0.100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.00500 <0.0500 <0.0500 NA <0.00500 J4 0.00221 J 0.00194 J 0.00173 J 0.00080 J <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0500 <0.0100 <0.0100 <0.0100 <0.0100 <0.100 <0.100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.00500 <0.0500 <0.0500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 C3 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 0.00302 <0.0100 <0.0100 J3, J6 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 0.000870 J 0.000737 0.000837 J 0.00132 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 0.0233 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 0.0325 0.0269 0.0295 NA 0.00260 0.0320 0.0292 0.0268 0.02340 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 0.00307 <0.0100 <0.0100 NA 0.000351 J 0.00335 0.00260 0.00286 0.00339 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA 0.00115 0.000610 J 0.000585 0.000622 J 0.000724 J <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.0125 <0.00250 <0.00250 <0.00250 <0.00250 <0.0250 <0.0250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.0100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <0.00100 <0.00100 <0.00100 0.00106 <0.0100 <0.0100 NA <0.00100 0.000868 J 0.000814 0.000688 J 0.00107 <0.00300 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.0150 <0.00300 <0.00300 <0.00300 <0.00300 <0.0300 <0.0300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 0.0763 0.00823 0.00449 0.00558 0.00301 NA 0.00694 0.00487 B 0.00591 0.00508 0.00453 0.00301 J3 J4 0.00695 B 1.990 1.880 2.960 3.690 NA 2.650 E 1.410 E 2.450 E 2.85 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00500 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA <0.00300 NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 0.0344 0.0253 0.0465 0.0293 NA 0.0173 0.0600 0.0120 0.0583 0.0271 0.0371 0.0362 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.00617 J <0.0100 <0.0100 <0.0100 0.133 0.308 0.307 0.336 0.276 NA 0.295 0.330 0.287 0.317 0.290 0.276 0.276 0.038 0.0734 0.0443 0.0425 NA 0.023 0.039 0.0386 0.0377 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000491 J 0.00107 J <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000660 J 0.000622 J <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.00154 <0.0100 <0.0100 NA 0.00265 J 0.00271 J <0.0100 <0.0100 <0.100 <0.100 0.0266 J 2.40 <0.100 NA 0.0207 J 2.010 0.0279 J 2.110 <0.100 <0.100 <0.0100 <0.100 <0.100 <0.100 <0.100 NA <0.100 NA <0.100 <0.100 0.00605 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA 0.00485 J <0.00600 <0.00600 <0.00600 0.0243 0.627 0.766 0.615 0.607 NA 0.592 0.570 0.567 0.540 0.520 0.533 0.535 0.0126 0.0409 0.0361 0.0163 NA 0.0575 NA 0.00946 J 0.0162 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 0.0159 <0.0100 NA 0.0392 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND mg/L mg/L mg/L mg/L GMW-5 DUP (GMW-5 Duplicate)GMW-6 mg/L mg/L mg/L mg/L mg/L Page 12 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/18/2019 2/19/2020 6/26/2020 09/24/2020 11/5/2020 03/23/2021 10/8/2021 04/01/2022 10/27/2022 03/30/2023 03/30/2023 09/17/2019 02/20/2020 6/23/2020 09/23/2020 11/4/2020 03/19/2021 10/7/2021 04/01/2022 10/24/2022 03/28/2023 09/09/2023 <0.0500 <0.250 <0.250 <0.0500 J3 NA <0.0500 <0.0250 <0.0500 J4 <0.0500 <0.0500 <0.0500 <0.0500 <0.0500 J3 J5 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J4 <0.500 <0.0500 <0.0500 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA <0.000500 NA NA NA NA <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 J3 J5 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 C3 <0.00500 <0.00500 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 J5 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.0500 <0.00500 <0.00500 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 0.0385 0.0355 0.0400 0.0261 NA 0.0497 0.0486 0.0365 0.0468 0.0432 0.036 0.00430 0.00475 J5 0.00397 NA 0.00438 0.00358 0.00360 0.00375 0.00357 J 0.00419 0.00497 0.00138 <0.00500 0.00169 0.00117 NA 0.00191 0.00190 0.00183 0.00184 0.00194 B 0.00185 B <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 0.444 0.478 0.532 0.600 NA 0.453 0.645 Q 0.389 0.488 0.568 0.501 0.0133 0.0145 0.0105 NA 0.0107 0.0102 0.0112 0.0107 0.0132 0.0124 0.0135 0.00115 <0.00500 0.00130 0.00101 NA 0.00175 0.00148 0.00132 0.00159 0.00185 0.00172 <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.0100 <0.0500 <0.0500 <0.0100 J3 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J5 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.100 <0.0100 <0.0100 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 J5 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.0100 <0.0500 <0.0500 <0.0100 NA <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J5 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.100 <0.0100 <0.0100 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.00250 <0.00500 <0.00500 C3 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0500 <0.00500 <0.00500 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 0.00145 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 J4 <0.00100 J4 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 C3 <0.0100 <0.00100 <0.00100 0.00255 0.00194 0.00249 0.00129 NA 0.00254 0.00211 0.00215 C5 0.00228 0.00318 0.00309 <0.00100 <0.00100 J3 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 J4 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.00037 J <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.0100 <0.00100 <0.00100 0.00534 0.00548 0.00464 0.00306 NA 0.00337 0.00297 0.00225 C5 0.00331 0.00292 0.00274 0.00186 0.00210 J3 J5 0.00203 NA 0.00141 0.00137 0.00136 0.00134 0.00218 J 0.00162 0.00182 <0.00100 <0.00500 0.000544 J 0.000470 J NA 0.000346 J 0.000216 J <0.00100 0.000371 J <0.00100 <0.00100 <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 0.00189 <0.00500 0.00184 0.0011 NA 0.00212 0.00194 0.00175 0.00212 0.00297 0.00285 B <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00250 <0.0125 <0.0125 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.0250 <0.00250 <0.00250 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00100 NA <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00100 <0.00500 0.000506 J <0.00100 NA <0.00100 0.000690 <0.00100 0.000882 J <0.00100 <0.00100 <0.00100 <0.00100 J3 J5 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.0100 <0.00100 <0.00100 <0.00300 <0.0150 <0.0150 <0.00300 NA <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 J3 J5 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.0300 <0.00300 <0.00300 0.177 0.130 0.173 0.212 NA 0.197 0.133 E 0.191 0.241 J4 0.179 0.185 0.0274 0.0205 0.0236 0.0259 NA 0.0268 0.0208 0.0333 0.0232 0.0202 0.0251 NA NA NA NA NA NA 0.000145 J NA <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0100 NA <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 0.000282 J <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 0.000222 J <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 <0.00100 <0.00100 <0.00100 0.000195 J <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 0.000228 J <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 0.000172 J <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 0.00015 J <0.001 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.00135 <0.00100 <0.00100 <0.00100 <0.00500 <0.00500 <0.00500 NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 0.003 <0.00300 NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 J4 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 J4 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA <0.00100 <0.00100 J4 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.000250 0.0000465 J <0.000250 <0.000250 NA <0.000250 NA <0.00100 <0.00500 <0.00500 <0.00500 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA <0.00100 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND NA ND NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.0322 0.0286 0.0737 0.0356 NA 0.0187 0.0432 0.0316 B 0.0455 0.0203 0.0181 0.0133 <0.0100 0.00525 J <0.0100 NA <0.0100 0.00605 J 0.00759 B J <0.0100 <0.0100 <0.0100 0.242 0.211 0.246 0.221 NA 0.212 0.236 0.217 0.225 0.207 0.206 0.061 0.0472 0.0513 0.0406 NA 0.0436 O1 0.0438 0.0448 0.0395 0.0421 0.0447 <0.00200 <0.00200 <0.00200 <0.00200 NA <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000543 J 0.00125 J <0.00200 <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 0.00158 J <0.0100 <0.0100 1.55 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 0.00205 J <0.0100 <0.0100 <0.100 0.0241 J 0.791 <0.100 NA <0.100 0.524 0.0282 J 0.437 6.37 <0.100 <0.100 <0.100 <0.100 NA <0.100 0.0567 J <0.100 0.116 <0.100 <0.100 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00500 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.401 0.343 0.392 0.363 NA `0.395 0.400 0.384 0.442 0.236 0.715 0.219 0.357 0.139 NA 0.173 O1 0.247 0.0832 0.131 0.0749 0.446 <0.0100 <0.0100 0.0118 <0.0100 NA <0.0100 0.0144 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.0122 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND mg/L mg/L mg/L mg/L mg/L GMW-7 DUP GMW-7 (GMW-7 Duplicate) mg/L GMW-8 Page 13 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/18/2019 02/18/2020 6/26/2020 09/22/2020 11/3/2020 03/22/2021 10/9/2021 04/05/2022 10/26/2022 03/29/2023 09/20/2019 02/19/2020 6/24/2020 09/24/2020 11/5/2020 03/24/2021 03/24/2021 10/11/2021 03/31/2022 10/27/2022 <0.0500 <0.0500 <0.0500 NA <0.0500 <0.0500 <0.0250 <0.0500 J3 J4 <0.0500 <0.0500 0.830 <12.5 <12.5 <0.0500 J3 NA 0.0145 J <0.500 <0.250 <0.500 <1.25 J4 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000452 J <0.250 <0.250 0.000542 J NA 0.000373 J <0.0100 <0.00500 0.000972 J <0.0250 NA NA NA NA NA NA <0.000500 NA NA NA NA NA NA NA NA NA NA 0.00104 J NA NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 0.000404 J <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 0.0161 <1.25 <1.25 0.00213 J NA 0.00108 J <0.0500 <0.0250 <0.0500 <0.125 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.000500 <0.00500 <0.00500 <0.00500 0.00267 J <1.25 <1.25 0.00581 NA 0.00371 J 0.00344 J 0.00568 0.00712 J 0.00763 J <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <0.00500 <1.25 <1.25 <0.00500 NA <0.00500 C3 <0.0500 C3 <0.0250 <0.0500 <0.125 0.00700 0.00529 0.00634 NA 0.00332 0.00155 0.00564 Q 0.00559 0.00494 0.00654 40.000 16.700 16.100 21.500 NA 13.400 12.900 17.300 177.000 14.500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.271 0.271 0.380 0.593 NA 0.383 0.366 0.479 0.577 0.632 C5 0.00142 0.00107 0.000933 J NA 0.00122 0.000224 J 0.000812 Q 0.000749 J 0.00087 J 0.00191 2.590 3.250 8.370 20.100 NA 14.500 14.600 37.500 454.000 45.800 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0146 <0.250 <0.250 0.0328 NA 0.0201 0.0181 0.0329 0.0394 0.0438 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000935 J <0.250 <0.250 0.00288 NA 0.00168 C3 <0.0100 C3 0.00316 J 0.00287 J <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.00225 <0.250 <0.250 0.00048 J NA 0.000298 J <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 J3 <0.0100 <0.0100 <2.50 <2.50 <2.50 0.0796 J3 NA <0.0100 <0.100 <0.0500 <0.100 <0.250 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.00500 <0.00500 <1.25 <1.25 0.121 J 0.0997 NA 0.0484 0.0429 J 0.00838 J <0.050 <0.125 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 0.00672 J <2.50 <2.50 0.00349 J NA 0.00161 J <0.100 <0.0500 <0.100 <0.250 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 C3 <0.00250 <0.00500 C3 J3 <0.00500 <0.00500 <0.00500 <1.25 <1.25 <0.00500 NA <0.00500 <0.0500 <0.0250 <0.0500 <0.125 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.00798 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 C3 <0.0100 C3 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0178 <0.250 <0.250 0.00591 NA 0.00449 0.00852 J 0.00741 0.0118 0.0163 J <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0702 <0.250 <0.250 0.0273 NA 0.0168 0.0148 0.011 0.0132 0.0184 J <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 C3 <0.00100 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.0100 <0.0100 <0.0250 <0.00100 0.000439 J 0.000410 J NA <0.00100 <0.00100 0.000273 J 0.000193 J 0.000192 J <0.00100 8.320 3.270 1.600 1.690 J4 NA 0.677 0.780 1.100 1.430 1.34 C5 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.00153 <0.250 0.0959 J 0.114 NA 0.106 0.0954 0.138 0.146 0.141 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.00707 <0.250 <0.250 0.0410 NA 0.0305 0.0243 0.0594 0.856 0.103 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.625 <0.625 <0.00250 NA <0.00250 <0.0250 <0.0250 <0.0250 <0.0625 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.000711 J <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0011 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.00100 <0.250 <0.250 <0.00100 NA <0.00100 <0.0100 <0.00500 <0.0100 <0.0250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 0.0256 <0.250 <0.250 0.0549 NA 0.0311 C3, J4 0.0140 C3, J4 0.0374 0.0518 0.0537 <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.00300 <0.00300 0.00792 <0.750 <0.750 0.00124 J NA 0.000624 J <0.0300 0.00255 J 0.00282 J <0.0750 0.0604 0.0358 0.0412 0.0469 NA 0.0137 0.0279 0.0459 0.0422 0.0528 0.713 0.673 2.570 3.610 NA 3.290 E 3.620 E NA 4.710 E 1.82 J3 J4 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 <0.001 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 0.000694 <0.00100 <0.00100 <0.00100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00300 <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 0.000929 J <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA 0.0289 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 <0.000100 NA NA NA NA NA NA NA NA NA NA NA NA NA 0.0000177 J <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA 0.000177 J 0.000032 J <0.000250 <0.000250 NA <0.000250 <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA 0.0000311 J 0.0000261 J <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 <0.0000500 NA NA NA NA NA NA NA NA NA NA NA NA NA 0.000078 J 0.000115 J <0.000250 <0.000250 NA <0.000250 <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA 0.000103 J 0.0000121 J <0.000250 <0.000250 NA <0.000250 <0.000250 NA NA NA NA NA NA NA NA NA NA NA NA NA ND ND ND ND NA ND ND NA NA NA <0.0100 <0.0100 <0.0100 <0.0100 NA 0.00463 J 0.0122 <0.0100 0.00624 J <0.0100 0.0148 <0.0500 0.00853 J <0.0100 NA <0.0100 0.0106 0.0142 0.0125 0.0144 0.251 0.172 0.187 0.187 NA 0.107 0.183 0.218 0.23 0.252 0.807 0.0289 0.0318 0.0347 NA 0.0206 0.0212 0.0286 0.0316 0.0358 <0.00200 <0.00200 <0.00200 <0.00200 NA 0.000506 J 0.000522 J 0.000504 J <0.00200 <0.00200 <0.00200 <0.0100 <0.0100 0.000706 J NA 0.00164 J 0.00169 J 0.00104 J 0.000778 J <0.00200 <0.0100 <0.0100 <0.0100 <0.0100 NA 0.00469 J 0.00217 J <0.0100 0.00146 J <0.0100 0.235 0.150 <0.0100 <0.0100 NA 0.00569 J 0.00577 J 0.00246 J 0.00352 J 0.00303 J <0.100 <0.100 <0.100 <0.100 NA 0.0272 J NA <0.100 0.0664 J <0.100 0.0648 J 0.0720 J <0.100 <0.100 NA 0.0282 J 0.0272 J 2.260 0.0351 J 1.990 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 0.00305 J <0.00600 <0.00500 <0.0250 <0.0250 <0.00600 NA <0.0300 <0.0300 <0.00600 <0.00600 <0.00600 0.232 0.104 0.202 0.199 NA 0.0783 NA 0.114 0.184 0.185 <0.0100 2.810 3.190 3.090 NA 5.990 V 6.070 3.250 J 3.010 2.720 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 0.00799 J <0.0100 <0.0100 0.0264 0.0533 0.00781 J 0.0152 NA 0.0102 <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0250 <0.0250 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND NA ND ND ND ND ND ND ND ND ND NA ND ND ND ND ND mg/L mg/L mg/L mg/L GP-13 INJ-3 mg/L INJ-3 DUP-2 (INJ-3 Duplicate) Page 14 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 09/20/2019 02/19/2020 6/24/2020 09/24/2020 11/5/2020 03/24/2021 10/12/2021 03/31/2022 10/27/2022 09/20/2019 02/19/2020 6/24/2020 09/24/2020 11/5/2020 03/24/2021 10/8/2021 03/31/2022 10/28/2022 <100 <12.5 <12.5 <1.00 J3 NA <50.0 <250 <250 J3 J4 0.623 C5 J4 0.784 <12.5 NA**<1.00 J3 NA 0.0555 <0.250 <0.500 <1.00 J3 J4 J5 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <50.0 <0.0100 0.000701 J <0.250 NA <0.0200 NA 0.000331 J <0.00500 <0.00100 <0.0200 J3 NA NA NA NA NA NA <5.00 <5.00 NA NA NA NA NA NA NA <0.00500 NA NA <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <10.0 <1.25 <1.25 <0.100 NA <5.00 <25.0 <25.0 <0.0500 0.0143 <1.25 NA <0.100 NA <0.00500 <0.0250 <0.00500 <0.100 J3 <10.0 <1.25 0.0312 J 0.0108 J NA <5.00 <5.00 <5.00 0.00839 J 0.00886 <1.25 NA <0.100 NA 0.00341 J 0.00377 J 0.00394 J 0.0039 J J3 <10.0 <1.25 <1.25 <0.100 NA <5.00 C3 <25.0 <25.0 <0.0500 <0.00500 <1.25 NA <0.100 NA <0.00500 C3 <0.0250 <0.00500 <0.100 J3 13.700 0.877 0.774 6.690 NA 3.970 12.600 7.850 14.300 45.500 4.640 NA 3.910 NA 3.620 4.230 Q 4.3900 3.62 V 1.07 J 0.191 J 0.175 J 0.470 NA 0.318 J <5.00 0.495 J 0.351 C5 0.239 J 0.145 J NA 0.153 NA 0.146 0.174 0.18 <1.00 22.400 23.900 20.600 23.700 NA 8.380 15.700 23.100 22.700 18.100 30.500 NA 26.000 NA 13.900 16.700 Q 294 27 <2.00 <0.250 <0.250 0.0282 NA <1.00 <5.00 <5.00 0.0198 0.0222 <0.250 NA 0.0130 J NA 0.0101 0.0107 0.0145 0.0121 J J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.00222 <0.250 NA <0.0200 NA 0.000813 C3, J <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 0.00304 J 0.00893 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.000563 J <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <20.0 <2.50 <2.50 <0.200 J3 NA <10.0 <50.0 <50.0 J3 <0.100 <0.0100 <2.50 NA <0.200 J3 NA <0.0100 <0.0500 <0.0100 <0.200 J3 <10.0 <1.25 <1.25 0.277 NA <5.00 <25.0 <25.0 0.24 0.155 <1.25 NA <0.100 NA 0.00221 J <0.0250 <0.00500 <0.100 <20.0 <2.50 <2.50 <0.200 NA <10.0 <50.0 <50.0 <0.100 0.0102 <2.50 NA <0.200 NA <0.0100 <0.0500 <0.0100 <0.200 <10.0 <1.25 <1.25 <0.100 NA <5.00 <25.0 <25.0 C3 J3 <0.0500 <0.00500 <1.25 NA <0.100 NA <0.00500 <0.0250 <0.00500 <0.100 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.00786 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 C3 <0.00500 <0.00100 <0.0200 J3 <2.00 0.119 J 0.0870 J 0.0623 NA <1.00 <5.00 <5.00 0.129 0.0965 <0.250 NA 0.0164 J NA 0.00910 0.0103 0.0176 0.0208 J3 <2.00 <0.250 <0.250 0.0551 NA <1.00 <5.00 <5.00 0.122 0.203 J <0.250 NA <0.0200 NA 0.00154 <0.00500 <0.00100 <0.0200 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <10.0 <10.0 <0.0100 <0.00100 <0.250 NA <0.0200 NA <0.00100 <0.0100 <0.00100 <0.0200 <20.0 8.660 4.240 141.000 J4 NA 620.000 624.000 453.000 293.000 2.650 J 9.940 NA 6.770 J4 NA 2.840 4.090 Q 2.31 1.79 <2.00 <0.250 0.110 J 0.182 NA <1.00 <5.00 <5.00 0.158 0.142 J <0.250 NA 0.0554 NA 0.0556 0.0460 0.0591 0.0558 <2.00 <0.250 0.0728 B, J, J4 0.0426 NA <1.00 <5.00 <5.00 0.0364 0.0480 <0.250 NA 0.0207 NA 0.0137 0.0143 0.0215 0.0212 J3 <5.00 <0.625 <0.625 <0.0500 NA <2.50 <25.0 <25.0 <0.0250 <0.00250 <0.625 NA <0.0500 NA <0.00250 <0.0250 <0.00250 <0.0500 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.00302 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.0023 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 <0.0200 NA <1.00 <5.00 <5.00 <0.0100 0.00133 <0.250 NA <0.0200 NA <0.00100 <0.00500 <0.00100 <0.0200 J3 <2.00 <0.250 <0.250 0.0109 J NA <1.00 <5.00 <5.00 0.0161 0.0359 <0.250 NA 0.00607 J NA 0.00456 C3, J4 0.00563 0.0069 J 0.00539 J J3 <6.00 <0.750 <0.750 <0.0600 NA <3.00 <15.0 <15.0 0.0121 J 0.0352 <0.750 NA <0.0600 NA <0.00300 <0.0150 <0.00300 <0.0600 J3 2.260 0.248 0.326 0.542 NA 0.246 0.594 E 0.0199 J4 0.593 6.0700 7.430 7.810 10.400 NA 6.980 E 1.690 J4 2.660 J4 2.77 B J3 J4 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 NA NA <0.0100 <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA NA NA NA NA 0.000439 <0.00100 NA NA NA NA NA NA NA <0.001 <0.00100 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA 0.000309 J <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA 0.000497 J <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA 0.00242 J <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA NA NA <0.0000500 0.0000222 J <0.0000500 <0.000100 NA <0.000100 NA NA NA 0.0000157 J <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA 0.000109 0.0000183 J <0.0000500 <0.0000500 NA <0.0000500 NA NA NA 0.000114 J 0.0000248 J <0.000250 <0.000250 NA 0.000102 J NA NA NA 0.000239 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA 0.0000144 J 0.0000117 J <0.0000500 <0.0000500 NA <0.0000500 NA NA NA 0.0000152 J 0.0000756 J <0.0000500 0.0000342 J NA 0.0000192 J NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA 0.0000403 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA 0.0000417 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA 0.0000648 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA 0.0000745 J <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA ND ND ND ND NA ND NA NA NA ND ND ND ND NA ND NA NA NA 0.0108 <0.0100 <0.0100 <0.0100 NA 0.00595 J <0.0100 <0.0100 0.00537 J 0.00982 J <0.0100 <0.0100 <0.0100 NA 0.00754 J 0.0185 <0.010 <0.0100 1.23 0.0332 0.0291 0.0297 NA 0.0203 0.0214 0.026 0.0252 0.701 0.0723 0.0694 0.065 NA 0.0317 0.0401 0.041 0.0505 O1 <0.00200 0.000805 J 0.00126 J 0.00152 J NA 0.00177 J 0.0017 J 0.00193 J 0.00104 J <0.00200 <0.00200 0.000628 J 0.000751 J NA 0.00154 J 0.00148 J 0.00121 J 0.000625 J 0.00212 J 0.0763 0.0595 0.0288 NA 0.0939 0.0342 0.0121 J 0.00419 J 0.00154 J 0.00409 J <0.0100 <0.0100 NA 0.03 0.00911 J 0.00246 J 0.00151 J 0.0222 J 0.0326 J <0.100 <0.100 NA <0.100 <0.100 0.069 J 0.305 <0.100 <0.100 <0.100 <0.100 NA <0.100 0.0204 J 0.0231 J 0.085 J <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.00600 <0.00600 <0.00600 <0.00600 4.190 0.00680 J <0.100 0.0948 NA 0.572 2.100 1.200 3.790 1.900 0.0466 0.0795 0.119 NA 0.00121 J 0.229 0.219 0.406 O1 <0.0100 <0.0100 0.00777 J 0.0187 NA <0.0100 0.0278 <0.010 <0.0100 <0.0100 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00500 <0.00500 <0.000200 0.000223 0.000101 0.000124 NA <0.000200 0.000133 J <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND NA ND ND ND #N/A ND ND ND ND NA ND ND ND ND INJ-4 INJ-5 Page 15 of 16 Project Number 222153 Table 2 2nd Round 2023 Groundwater Analytical Results Summary 2150 N. Rulon White Boulevard Ogden, Utah 84408 Date Collected VOCs - USEPA Method 8260B/8260C Acetone NE 14 NE Benzene 0.005 0.00046 0.005 Carbon Disulfide NE NE NE Carbon Tetrachloride 0.005 0.00046 0.005 Chlorobenzene 0.1 0.078 0.1 Chloroethane NE 21 NE Chloroform NE 0.00022 0.08 Dichlorodifluoromethane NE 0.2 NE 1,1-Dichloroethane NE 0.0028 NE 1,2-Dichloroethane 0.005 0.00017 0.005 1,1-Dichloroethene 0.007 0.28 0.007 Cis-1,2-Dichloroethene 0.07 0.036 0.07 Trans-1,2-Dichloroethene 0.1 0.36 0.1 Di-Isopropyl Ether NE 1.5 NE Ethylbenzene 0.7 0.0015 0.7 p-Isopropyltoluene NE NE NE 2-Butanone (MEK)NE 5.6 NE Methylene Chloride 0.005 0.011 0.005 4-Methyl-2-Pentanone (MIBK)NE 6.3 NE Naphthalene NE 0.00017 NE n-Propylbenzene NE 0.66 NE 1,1,2,2-Tetrachloroethane NE 0.000076 NE 1,1,2-Trichlorotrifluoroethane NE 10 NE Tetrachloroethene 0.005 0.011 0.005 Toluene 1 1.1 1 1,2,3-Trichlorobenzene NE 0.007 NE 1,2,4-Trichlorobenzene 0.07 0.0012 0.07 1,1,1-Trichloroethane 0.2 8 0.2 1,1,2-Trichloroethane 0.005 0.00028 0.005 Trichloroethene 0.005 0.00049 0.005 1,2,3-Trichloropropane NE 0.00000075 NE 1,2,4-Trimethylbenzene NE 0.056 NE 1,2,3-Trimethylbenzene NE 0.055 NE 1,3,5-Trimethylbenzene NE 0.06 NE Vinyl Chloride 0.002 0.000019 0.002 Xylenes, Total 10 0.19 10 *1,4-Dioxane - USEPA Methods 8270C-mod, 8270E-SIM & 8260D-SIM 1,4-Dioxane NE 0.00046 NE SVOCs - USEPA Method 8270C Chrysene NE NE NE Hexachloroethane NE 0.00033 NE Benzo(a)anthracene NE NE NE Benzo(b)fluoranthene NE NE NE Benzo(k)fluoranthene NE NE NE Benzo(g,h,i)perylene NE NE NE Benzo(a)pyrene 0.0002 0.000025 0.0002 Dibenz(a,h)anthracene NE 0.000025 NE Naphthalene NE 0.00017 NE Benzylbutyl Phthalate NE 0.016 NE Bis(2-Ethylhexyl)Phthalate 0.006 0.0056 0.006 Di-N-Butyl Phthalate NE 0.9 NE Diethyl Phthalate NE 15 NE Dimethyl Phthalate NE NE NE 2,4-Dichlorophenol NE 0.046 NE 2,4-Dimethylphenol NE 0.36 NE Diethyl phthalate NE 1.5 NE 2-Nitrophenol NE NE NE Pentachlorophenol 0.001 0.000041 0.001 Phenol NE 5.8 NE PAHs - USEPA Method 8270E-SIM Anthracene NE 1.8 NE Acenaphthylene NE NE NE Benzo(a)Anthracene NE 0.00003 NE Benzo(a)Pyrene 0.0002 0.000025 0.0002 Benzo(b)Fluoranthene NE 0.00025 NE Benzo(g,h,i)Perylene NE NE NE Benzo(k)Fluoranthene NE 0.0025 NE Chrysene NE 0.025 NE Dibenz(a,h)Anthracene NE 0.000025 NE Fluoranthene NE 0.8 NE Fluorene NE 0.29 NE Naphthalene NE 0.00017 NE Phenanthrene NE NE NE Pyrene NE 0.12 NE 1-Methylnaphthalene NE 0.0011 NE 2-Methylnaphthalene NE 0.036 NE Other PAHs Varies Varies Varies Dissolved Metals - USEPA Methods 6010B/7470A Arsenic 0.05 0.000052 0.01 Barium 2 3.8 2 Cadmium 0.005 0.0092 0.005 Chromium 0.1 NE 0.1 Iron NE 14 NE Lead 0.015 0.015 0.015 Manganese NE 0.43 NE Selenium 0.05 0.1 0.05 Silver 0.1 0.094 NE Mercury 0.002 0.00063 0.002 Other Dissolved Metals Varies Varies Varies Notes: Samples analyzed at Pace Analytical National Center for Testing & Innovation, Mount Juliet, TN. Utah Depertment of Enviornmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels obt Groundwater Quality Protection Program, Table 1 of R317-6-2.1, updated October, 2019; and the Uni Protection Agency (USEPA) Regional Screening Levels (RSLs) - Generic Table, updated as of May 2 All concentrations expressed in milligrams per liter (mg/l). Refer to glossary and definitions page provided in laboratory analytical reports for a definition per any Qualifier with reported values (i.e. E, B, C3, J, J1, J3, J4, J5, J6, Q, V). Only detected analytes shown. ND: Not detected. NA: Not analyzed. NE: Not established. NR: Not Reported. *1,4-Dioxane analyzed using USEPA Method 8270C-mod for RPS 3rd Quarter 2019 samples; Some in earlier q USEPA 8260D-SIM; USEPA Method 8270E-SIM for 2nd round samples 2021 Sample ID USEPA Regional Screening Level (RSL) Tapwater - Carcinogenic USEPA Maximum Contaminant Level (MCL) Utah Ground Water Quality Standards Utah Department of Environmental Quality (UDEQ) Voluntary Cleanup Program Screening Levels mg/L mg/L mg/L mg/L mg/L 10/2/2019 2/18/2020 6/25/2020 09/22/2020 11/3/2020 03/23/2021 10/9/2021 03/31/2022 10/27/2022 03/24/2021 10/12/2021 03/31/2022 10/28/2022 03/24/2021 10/12/2021 03/31/2022 03/31/2022 10/28/2022 03/24/2021 10/12/2021 03/31/2022 10/28/2022 <0.0500 <0.0500 <0.0500 NA 0.171 <0.0500 <0.0250 <0.0500 <0.250 J4 <500 <250 <500 2.71 C5 J4 <0.0500 <0.0250 <0.0500 <0.0500 0.0421 J 1.220 J 1.060 0.987 J 1.75 J J4 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 <0.00100 <0.00100 0.0000956 J <0.0250 <0.0125 <0.0250 <0.0500 NA NA NA NA NA NA <0.000500 NA NA NA <5.00 NA NA NA 0.000431 J NA NA NA NA 0.0534 NA NA <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 J3 J6 <10.0 123 <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 27.5 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00500 0.00157 J <0.0500 NA <0.00500 <0.00500 0.00191 J 0.00208 J 0.00196 J <50.0 <25.0 <50.0 <0.250 0.00124 J 0.00170 J 0.00152 J 0.00155 J 0.00208 J <0.125 <0.0625 0.00776 J <0.250 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 0.000143 J <0.00500 <0.0250 <50.0 <5.00 <50.0 0.0387 J <0.00500 <0.000500 <0.00500 <0.000500 0.000705 J 0.0114 J 0.0168 0.00392 J 0.0124 J <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <50.0 <25.0 <50.0 <0.250 <0.00500 <0.00250 <0.00500 <0.00250 <0.00500 <0.125 <0.0625 <0.125 <0.250 2.020 0.898 1.160 NA 0.0999 0.367 0.981 Q 0.433 0.602 9.080 J 18.200 26.700 38.800 1.380 2.140 2.120 2.090 3.740 18.500 23.900 32.400 36.100 0.00666 0.00247 0.00341 J NA 0.00054 J 0.00150 0.00327 0.00157 0.00215 J <10.0 <5.00 1.230 J 1 C5 0.00389 0.00576 0.00522 0.00534 0.024 0.355 0.566 0.184 0.596 C5 0.164 0.251 0.253 NA 0.00409 0.101 0.205 Q 0.188 0.224 6.580 J 18.100 30.500 29.500 2.120 4.560 3.980 3.930 5.870 23.800 49.200 25.100 43.400 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 0.041 J 0.000449 J 0.000555 0.000558 J 0.000576 J 0.00184 0.0289 0.0376 0.0142 J 0.0348 J <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 0.000323 J <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.0100 <0.0100 <0.0100 NA 0.0144 <0.0100 <0.00500 <0.0100 <0.0500 <100 <50.0 <100 <0.500 <0.0100 <0.00500 <0.0100 <0.0100 <0.0100 0.413 <0.125 <0.250 <0.500 <0.00500 <0.00500 <0.00500 NA <0.00500 J4 <0.00500 <0.00250 <0.00500 <0.0250 <50.0 <25.0 <50.0 0.555 0.000651 J 0.00158 J 0.00110 J 0.019 J 0.0137 0.286 0.402 0.182 0.379 <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 <0.00500 <0.0100 <0.0500 <100 <50.0 <100 <0.500 <0.0100 <0.00500 <0.0100 <0.0100 0.00119 J <0.250 <0.125 <0.250 <0.500 <0.00500 <0.00500 J4 <0.00500 J4 NA <0.00500 <0.00500 <0.00250 <0.00500 <0.0250 <50.0 C3 <25.0 <50.0 <0.250 <0.00500 0.00732 <0.00100 <0.00500 <0.00500 C3 <0.125 <0.0625 J4 <0.125 <0.250 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 0.000207 J <0.00100 <0.00100 0.000213 J <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 <0.00100 <0.00100 <0.00100 <0.0250 0.108 <0.0250 <0.0500 <0.00100 0.000601 J <0.00100 NA <0.00100 <0.00100 0.00074 0.000378 J <0.00500 <10.0 <5.00 <10.0 0.127 0.000506 J 0.000521 J3 0.000574 J 0.000596 J 0.00295 0.0747 0.0775 0.0263 0.0975 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 J4 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 0.204 <0.00100 0.000888 <0.00100 0.000285 J 0.00485 0.165 0.201 0.0644 0.226 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.00100 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 <0.000500 J3 <0.00100 <0.00100 <0.00100 C3 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.00100 <0.00100 <0.00500 <10.0 <10.0 <10.0 <0.0500 <0.00100 <0.00100 J3 <0.00100 <0.00100 <0.00100 <0.0250 <0.0250 <0.0250 <0.0500 0.0121 0.00355 0.00336 J NA <0.00100 0.00214 0.00293 0.00269 J 0.00216 J 498.000 1,030.000 V 991.000 963.000 0.222 J 3.340 1.180 1.170 17.300 131.000 225.000 76.800 230.000 0.00276 0.00105 <0.00100 NA 0.00024 J 0.000458 J 0.000744 0.000587 J <0.00500 <10.0 <5.00 <10.0 0.352 0.00174 0.00239 0.00215 0.0022 0.00715 0.256 0.307 0.102 0.307 <0.00100 <0.00100 <0.00100 NA 0.000257 J <0.00100 <0.000500 <0.000500 <0.00500 <10.0 <5.00 <10.0 0.0621 0.345 J 0.000601 0.000561 J 0.000565 J 0.00179 0.0519 0.0637 0.0201 J 0.0599 <0.00250 <0.00250 <0.00250 NA <0.00250 <0.00250 <0.00250 <0.00250 <0.0125 <25.0 <25.0 <25.0 <0.125 <0.00250 <0.00250 <0.00250 <0.00250 <0.00250 <0.0625 <0.0625 <0.0625 <0.125 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 0.00302 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 0.00133 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 <0.000500 <0.000500 <0.00500 <10.0 <5.00 <10.0 <0.0500 <0.00100 0.000825 <0.00100 <0.00100 <0.00100 <0.0250 <0.0125 <0.0250 <0.0500 <0.00100 <0.00100 <0.00100 NA <0.00100 <0.00100 0.000631 0.000644 J <0.00500 <10.0 <5.00 <10.0 0.0251 J 0.00561 0.00789 J3 0.00747 0.00733 0.0145 0.0235 J 0.0276 0.0186 J 0.0264 J <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 <0.00150 <0.00300 <0.0150 <30.0 <15.0 <30.0 <0.150 <0.00300 0.00409 <0.00300 <0.00300 <0.00300 0.0115 J 0.0126 J <0.0750 0.0167 J 1.020 E 0.139 0.374 0.253 NA 0.156 0.338 E 0.194 E 0.175 0.00151 0.00811 0.0439 0.0242 0.0328 0.00529 0.00125 B 0.0027 0.0182 0.783 E 1.500 E 0.0415 J4 0.435 E J4 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA <0.001 NA NA NA <0.001 NA NA NA NA 0.000144 J NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA <0.001 NA NA NA <0.001 NA NA NA NA 0.0000613 NA NA NA NA NA NA NA <0.001 <0.001 NA NA NA <0.001 NA NA NA <0.001 NA NA NA NA 0.000146 J NA NA NA NA NA NA NA NA <0.00100 NA NA NA <0.00100 NA NA NA <0.00100 NA NA NA NA <0.00100 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 NA NA NA <0.00300 NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 NA NA NA <0.00300 NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 NA NA NA <0.00300 NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 NA NA NA <0.00300 NA NA NA NA <0.00300 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 <0.00300 NA NA NA <0.00300 NA NA NA <0.00300 NA NA NA NA <0.00300 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA <0.00300 <0.00300 <0.00300 NA <0.00300 NA NA NA NA NA NA NA NA NA NA NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA <0.0100 <0.0100 <0.0100 NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA <0.0100 0.000441 J 0.00480 J NA <0.0100 <0.0100 NA NA NA <0.0100 NA NA NA <0.0100 NA NA NA NA <0.0100 NA NA NA <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.000100 NA <0.000100 NA NA NA <0.000100 NA NA NA <0.000100 NA NA NA NA <0.000100 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA <0.000250 NA NA NA <0.000250 NA NA NA NA <0.000250 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.0000500 <0.0000500 <0.0000500 <0.0000500 NA <0.0000500 NA NA NA <0.0000500 NA NA NA <0.0000500 NA NA NA NA <0.0000500 NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA <0.000250 NA NA NA <0.000250 NA NA NA NA <0.000250 NA NA NA <0.000250 <0.000250 <0.000250 <0.000250 NA <0.000250 NA NA NA <0.000250 NA NA NA <0.000250 NA NA NA NA <0.000250 NA NA NA ND ND ND ND NA ND NA NA NA ND NA NA NA ND NA NA NA NA ND NA NA NA <0.0100 <0.0100 <0.0100 0.00573 J NA 0.00718 J 0.0194 <0.0500 0.0128 0.0315 J 0.0108 0.0108 0.0139 0.00797 J 0.00454 J 0.0118 0.0117 0.0194 <0.0500 0.0464 0.0347 0.0467 0.151 0.0204 0.0217 0.0212 NA 0.0194 0.0231 0.17 0.0172 0.0245 J 0.0261 0.0311 0.035 0.0304 0.0420 0.0288 0.0326 0.0547 0.023 J 0.0281 0.0182 0.0421 <0.00200 0.00117 J <0.00200 0.000627 J NA 0.00253 0.00185 J 0.00856 J 0.000695 J 0.00429 J 0.00137 J 0.00101 J 0.0012 J 0.00104 J 0.00117 J 0.000580 J 0.000608 J <0.00200 0.0028 J <0.00200 <0.00200 0.000715 J <0.0100 0.0128 0.0126 0.00621 J NA 0.00375 J 0.00586 J 0.0257 J 0.00159 J <0.0500 0.00321 J <0.0100 0.0035 J <0.0100 0.00153 J <0.0100 <0.0100 <0.0100 0.00789 J 0.00333 J <0.0100 0.00507 J <0.100 <0.100 <0.100 <0.100 NA 0.0185 J NA 0.177 J 0.362 <0.500 0.0839 J 0.0237 J 3.05 <0.100 0.456 <0.100 <0.100 3.65 <0.500 9.460 0.248 7.62 <0.00500 <0.00500 <0.00500 <0.00600 NA <0.0300 <0.0300 0.0152 J 0.00338 J <0.0300 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 <0.00600 0.003 J <0.0300 <0.00600 <0.00600 <0.00600 0.0627 2.080 0.900 0.482 NA 8.200 NA 17.8 2.04 12.500 7.700 V 7.51 7.08 1.910 1.240 1.330 1.220 0.962 14.200 8.860 6.400 6.300 <0.0100 0.0210 0.0181 0.0246 NA 0.0408 0.0260 <0.0500 <0.0100 <0.0500 0.0316 7.93 J <0.0100 <0.0100 0.0252 <0.0100 <0.0100 <0.0100 0.0447 J 0.0291 <0.0100 <0.0100 <0.00500 <0.00500 <0.00500 <0.00500 NA <0.00500 <0.00500 <0.0250 <0.00500 <0.0250 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.00500 <0.0250 <0.00500 <0.00500 0.00159 J <0.000200 <0.000200 <0.000200 <0.000200 NA <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 <0.000200 ND ND ND ND NA ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND INJ-9INJ-7 INJ-8 mg/L mg/L INJ-80XDUP (INJ-8 DuINJ-6 mg/L mg/L mg/L Page 16 of 16 SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com Field Forms SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com VOC Trend Diagrams RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 09/17/2019 02/19/2020 6/23/2020 11/4/2020 03/23/2021 10/7/2021 03/30/2022 10/24/2022 3/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-1 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/17/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/7/20201 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-5 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 09/17/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 04/01/2022 10/27/2022 03/29/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-7 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/16/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-8 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00005 0.0001 0.00015 0.0002 0.00025 09/16/2019 2/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/24/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-9 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 10/2/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 10/5/2021 04/04/2022 10/26/2022 03/29/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-10B VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 09/19/2019 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/04/2022 10/25/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-11 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 03/30/2022 10/26/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-12S VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 0.0016 0.0018 0.002 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 3/30/2022 10/26/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-12D VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 09/20/2019 02/18/2020 6/24/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-13S VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 09/19/2019 0218/2020 6/24/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-13D VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-14S VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-14D VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 0.018 10/2/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 Co n c e n t r a t i o n ( m g / L ) MW-15 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 0.007 10/2/2019 02/18/2020 6/24/2020 11/4/2020 03/22/2021 10/9/2021 04/04/2022 10/25/2022 03/29/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-16 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 10/2/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-17 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0001 0.0002 0.0003 0.0004 0.0005 0.0006 10/2/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-18 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 10/11/2021 04/04/2022 10/25/2022 03/29/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-19 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 10/11/2021 04/04/2022 10/26/2022 03/29/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-20 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00002 0.00004 0.00006 0.00008 0.0001 0.00012 0.00014 0.00016 0.00018 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-21 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-22 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/18/2019 2/28/2020 6/25/2020 11/3/2020 03/22/2021 10/11/2021 04/05/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-1 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/18/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 10/5/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-2 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/17/2019 02/19/2020 6/23/2020 11/4/2020 03/22/2021 10/9/2021 04/01/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-3 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 09/17/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) GMW-4 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/16/2019 02/19/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2012 03/30/2022 10/24/2022 03/28/2023 9/12/2023 Co n c e n t r a t i o n ( m g / L ) GMW-5 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.001 0.002 0.003 0.004 0.005 0.006 09/18/2019 2/19/2020 6/26/2020 09/24/2020 03/23/2021 10/8/2021 04/01/2022 10/27/2022 03/30/2023 Co n c e n t r a t i o n ( m g / L ) GMW-7 VOCs (P&A 6-2023) 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 09/17/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/7/2021 04/01/2022 10/24/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) GMW-8 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix D VOC Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035 0.0004 0.00045 0.0005 09/18/2019 02/18/2020 6/26/2020 11/3/2020 03/22/2021 10/9/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GP-13 VOCs 1,2-Dichloroethane 1,1,1-Trichloroethane Trichloroethene Vinyl Chloride Chloroform 2nd Round 2023 Groundwater Monitoring September 2023 SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com 1,1-DCE Trend Diagrams RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 09/17/2019 02/19/2020 6/23/2020 11/4/2020 03/23/2021 10/7/2021 03/30/2022 10/24/2022 3/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-1 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 09/17/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/7/20201 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-5 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 09/17/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 04/01/2022 10/27/2022 03/29/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-7 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/16/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-8 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035 09/16/2019 2/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/24/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-9 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 10/2/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 10/5/2021 04/04/2022 10/26/2022 03/29/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-10B 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 09/19/2019 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/04/2022 10/25/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-11 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 03/30/2022 10/26/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-12S 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 3/30/2022 10/26/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-12D 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0.000 1.000 2.000 3.000 4.000 5.000 6.000 7.000 8.000 9.000 10.000 09/20/2019 02/18/2020 6/24/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-13S 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 09/19/2019 0218/2020 6/24/2020 11/3/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-13D 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0.000 10.000 20.000 30.000 40.000 50.000 60.000 70.000 80.000 90.000 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-14S 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0.000 0.200 0.400 0.600 0.800 1.000 1.200 1.400 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-14D 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 10/2/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 Co n c e n t r a t i o n ( m g / L ) MW-15 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 10/2/2019 02/18/2020 6/24/2020 11/4/2020 03/22/2021 10/9/2021 04/04/2022 10/25/2022 03/29/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-16 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 0.0016 0.0018 0.002 10/2/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-17 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035 0.0004 0.00045 0.0005 10/2/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-18 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0002 0.0004 0.0006 0.0008 0.001 0.0012 0.0014 10/11/2021 04/04/2022 10/25/2022 03/29/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-19 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 10/11/2021 04/04/2022 10/26/2022 03/29/2023 9/11/2023 Co n c e n t r a t i o n ( m g / L ) MW-20 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-21 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-22 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 09/18/2019 2/28/2020 6/25/2020 11/3/2020 03/22/2021 10/11/2021 04/05/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-1 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.00005 0.0001 0.00015 0.0002 0.00025 0.0003 0.00035 0.0004 09/18/2019 02/18/2020 6/25/2020 11/3/2020 03/22/2021 10/5/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-2 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 0.003 0.0035 0.004 09/17/2019 02/19/2020 6/23/2020 11/4/2020 03/22/2021 10/9/2021 04/01/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-3 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 09/17/2019 02/20/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) GMW-4 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0.00000 0.00020 0.00040 0.00060 0.00080 0.00100 0.00120 0.00140 09/16/2019 02/19/2020 6/22/2020 11/4/2020 03/19/2021 10/7/2012 03/30/2022 10/24/2022 03/28/2023 9/12/2023 Co n c e n t r a t i o n ( m g / L ) GMW-5 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 09/18/2019 2/19/2020 6/26/2020 09/24/2020 03/23/2021 10/8/2021 04/01/2022 10/27/2022 03/30/2023 Co n c e n t r a t i o n ( m g / L ) GMW-7 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.002 0.004 0.006 0.008 0.01 0.012 0.014 0.016 09/17/2019 02/20/2020 6/23/2020 11/4/2020 03/19/2021 10/7/2021 04/01/2022 10/24/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) GMW-8 1,1-DCE 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix E 1,1-DCE Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.0005 0.001 0.0015 0.002 0.0025 09/18/2019 02/18/2020 6/26/2020 11/3/2020 03/22/2021 10/9/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GP-13 1,1-DCE (P&A 6-2023) 1,1-Dichloroethene 2nd Round 2023 Groundwater Monitoring September 2023 SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com Dissolved Metals Trend Diagrams RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 09/17/2019 02/19/2020 06/23/2020 09/22/2020 03/23/2021 10/7/2021 03/30/2022 10/24/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-1 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 09/17/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/7/20201 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-5 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 09/17/2019 02/18/2020 6/25/2020 09/22/2020 03/22/2021 04/01/2022 10/27/2022 03/29/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-7 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 09/16/2019 02/20/2020 6/22/2020 09/22/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-8 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 09/16/2019 2/20/2020 6/23/2020 09/23/2020 03/19/2021 10/5/2021 04/01/2022 10/24/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-9 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 10/2/2019 02/18/2020 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/04/2022 10/26/2022 03/29/2023 9/12/2023 Co n c e n t r a t i o n ( m g / L ) MW-10B Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 09/19/2019 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/04/2022 10/25/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-11 Metals (P&A 6-2023) Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 03/30/2022 10/26/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-12S Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 09/19/2019 02/19/2020 6/23/2020 09/24/2020 03/23/2021 10/8/2021 3/30/2022 10/26/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-12D Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.5 1 1.5 2 2.5 09/20/2019 02/18/2020 6/24/2020 09/23/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-13S Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 09/19/2019 0218/2020 6/24/2020 09/23/2020 03/23/2021 10/5/2021 03/29/2022 10/27/2022 03/29/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) MW-13D Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 5 10 15 20 25 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/12/2023 Co n c e n t r a t i o n ( m g / L ) MW-14S Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 09/20/2019 02/19/2020 6/24/2020 09/24/2020 03/24/2021 10/12/2021 03/29/2022 10/27/2022 03/30/2023 9/12/2023 Co n c e n t r a t i o n ( m g / L ) MW-14D Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 10/2/2019 02/20/2020 6/22/2020 09/23/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 Co n c e n t r a t i o n ( m g / L ) MW-15 Metals (P&A 6-2023) Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 10/2/2019 02/18/2020 6/24/2020 09/21/2020 03/22/2021 10/9/2021 04/04/2022 10/25/2022 03/29/2023 9/12/2023 Co n c e n t r a t i o n ( m g / L ) MW-16 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 10/2/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 Co n c e n t r a t i o n ( m g / L ) MW-17 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 10/2/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/5/2021 04/01/2022 10/25/2022 03/28/2023 09/09/2023 Co n c e n t r a t i o n ( m g / L ) MW-18 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 10/11/2021 04/04/2022 10/25/2022 03/29/2023 9/12/2023 Co n c e n t r a t i o n ( m g / L ) MW-19 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 10/11/2021 04/04/2022 10/26/2022 03/29/2023 9/12/2023 Co n c e n t r a t i o n ( m g / L ) MW-20 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0.000 0.050 0.100 0.150 0.200 0.250 0.300 0.350 0.400 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-21 Metals (P&A 6-2023) Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 10/11/2021 04/04/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) MW-22 Metals (P&A 6-2023) Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 09/18/2019 2/28/2020 6/25/2020 09/21/2020 03/22/2021 10/11/2021 04/05/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-1 Metals (P&A 6-2023) Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 09/18/2019 02/18/2020 6/25/2020 09/22/2020 03/22/2021 10/5/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-2 Metals (P&A 6-2023) Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 09/17/2019 02/19/2020 6/23/2020 09/22/2020 03/22/2021 10/9/2021 04/01/2022 10/24/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GMW-3 Metals (P&A 6-2023) Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.01 0.02 0.03 0.04 0.05 0.06 09/17/2019 02/20/2020 6/22/2020 09/23/2020 03/19/2021 10/7/2021 03/30/2022 10/25/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) GMW-4 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 09/16/2019 02/19/2020 6/22/2020 09/22/2020 03/19/2021 10/7/2012 03/30/2022 10/24/2022 03/28/2023 9/12/2023 Co n c e n t r a t i o n ( m g / L ) GMW-5 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 09/18/2019 2/19/2020 6/26/2020 09/24/2020 03/23/2021 10/8/2021 04/01/2022 10/27/2022 03/30/2023 Co n c e n t r a t i o n ( m g / L ) GMW-7 Metals (P&A 6-2023) Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 09/17/2019 02/20/2020 6/23/2020 09/23/2020 03/19/2021 10/7/2021 04/01/2022 10/24/2022 03/28/2023 9/9/2023 Co n c e n t r a t i o n ( m g / L ) GMW-8 Metals Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 RPS Project Number 222153 Appendix F Dissolved Metals Trend Diagrams 2150 N. Rulon White Boulevard Ogden, Utah 84408 0 0.05 0.1 0.15 0.2 0.25 09/18/2019 02/18/2020 6/26/2020 09/22/2020 03/22/2021 10/9/2021 04/05/2022 10/26/2022 03/29/2023 Co n c e n t r a t i o n ( m g / L ) GP-13 Metals (P&A 6-2023) Arsenic Mangenese 2nd Round 2023 Groundwater Monitoring September 2023 SECOND BI-ANNUAL 2023 GROUNDWATER MONITORING REPORT CHROMALOX rpsgroup.com Laboratory Reports and Chains of Custody ANALYTICAL REPORT September 18, 2023 Tetra Tech Inc. - UT Sample Delivery Group:L1654128 Samples Received:09/08/2023 Project Number:117-0551036 Description:Chromalox Report To:Michael Ozier 4750 West 2100 South Suite 400 Salt Lake City, UT 84120 Entire Report Reviewed By: September 18, 2023 [Preliminary Report] Chris Ward Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 1 of 47 September 19, 2023 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 1 of 47 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 MW-20 L1654128-01 6 MW-14D L1654128-02 8 MW-14S L1654128-03 11 MW-10B L1654128-04 14 MW-16 L1654128-05 17 MW-19 L1654128-06 20 DUPMW-10B L1654128-07 22 Qc: Quality Control Summary 25 Mercury by Method 7470A 25 Metals (ICP) by Method 6010B 27 Volatile Organic Compounds (GC/MS) by Method 8260B 28 Semi Volatile Organic Compounds (GC/MS) by Method 8270C 33 Semi Volatile Organic Compounds (GC/MS) by Method 8270E 42 Gl: Glossary of Terms 45 Al: Accreditations & Locations 46 Sc: Sample Chain of Custody 47 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 2 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 2 of 47 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-20 L1654128-01 GW Michael Ozier 09/07/23 08:30 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129692 1 09/12/23 16:09 09/13/23 12:54 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:37 ZSA Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 5 09/12/23 09:41 09/13/23 09:49 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 19:24 09/11/23 19:24 DWR Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129848 1 09/12/23 05:12 09/13/23 00:17 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-14D L1654128-02 GW Michael Ozier 09/07/23 08:08 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129692 1 09/12/23 16:09 09/13/23 12:56 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:40 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 19:43 09/11/23 19:43 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2133344 5 09/16/23 02:06 09/16/23 02:06 ACG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129851 1 09/12/23 16:20 09/13/23 11:33 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129848 1 09/12/23 05:12 09/12/23 23:20 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-14S L1654128-03 GW Michael Ozier 09/07/23 08:50 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129692 1 09/12/23 16:09 09/13/23 12:59 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:43 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 20 09/11/23 23:18 09/11/23 23:18 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2133344 500 09/16/23 02:28 09/16/23 02:28 ACG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129851 1 09/12/23 16:20 09/13/23 11:54 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129848 1 09/12/23 05:12 09/12/23 23:39 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-10B L1654128-04 GW Michael Ozier 09/07/23 09:50 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129692 1 09/12/23 16:09 09/13/23 13:01 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:46 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 20:03 09/11/23 20:03 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2133344 1 09/15/23 21:48 09/15/23 21:48 ACG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129851 1 09/12/23 16:20 09/13/23 12:16 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129848 1 09/12/23 05:12 09/12/23 23:58 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-16 L1654128-05 GW Michael Ozier 09/07/23 09:58 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129796 1 09/11/23 16:45 09/12/23 01:04 NDL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:49 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 20:22 09/11/23 20:22 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2133344 5 09/16/23 02:49 09/16/23 02:49 ACG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129851 1 09/12/23 16:20 09/13/23 12:38 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130432 1 09/13/23 16:19 09/14/23 07:22 AGW Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 3 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 3 of 47 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-19 L1654128-06 GW Michael Ozier 09/07/23 10:45 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129796 1 09/11/23 16:45 09/12/23 01:07 NDL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:52 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 20:42 09/11/23 20:42 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2133344 1 09/15/23 22:09 09/15/23 22:09 ACG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130432 1.05 09/13/23 16:19 09/14/23 07:41 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2132810 1 09/15/23 08:06 09/16/23 01:32 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time DUPMW-10B L1654128-07 GW Michael Ozier 09/07/23 00:00 09/08/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129796 1 09/11/23 16:45 09/12/23 01:09 NDL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2130299 1 09/12/23 09:41 09/12/23 21:55 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129755 1 09/11/23 21:01 09/11/23 21:01 DWR Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2130427 1 09/14/23 07:41 09/15/23 13:22 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130432 1.02 09/13/23 16:19 09/14/23 06:44 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2132810 1 09/15/23 08:06 09/16/23 01:51 AGW Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 4 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 4 of 47 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Chris Ward Project Manager Sample Delivery Group (SDG) Narrative pH outside of method requirement. Lab Sample ID Project Sample ID Method L1654128-02 MW-14D 8260B L1654128-03 MW-14S 8260B L1654128-06 MW-19 8260B 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 5 of 47 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 5 of 47 SAMPLE RESULTS - 01 L1654128 MW-20 Collected date/time: 09/07/23 08:30 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 12:54 WG2129692 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0914 0.0100 1 09/12/2023 21:37 WG2130299 Barium,Dissolved 0.253 0.00500 1 09/12/2023 21:37 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:37 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:37 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:37 WG2130299 Lead,Dissolved ND 0.0300 5 09/13/2023 09:49 WG2130299 Manganese,Dissolved 0.132 0.0100 1 09/12/2023 21:37 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:37 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:37 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 19:24 WG2129755 Acrolein ND 0.0500 1 09/11/2023 19:24 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 19:24 WG2129755 Benzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 19:24 WG2129755 Bromoform ND 0.00100 1 09/11/2023 19:24 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 19:24 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 19:24 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 19:24 WG2129755 Chloroethane ND 0.00500 1 09/11/2023 19:24 WG2129755 Chloroform ND 0.00500 1 09/11/2023 19:24 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 19:24 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 19:24 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 19:24 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 19:24 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 19:24 WG2129755 1,1-Dichloroethane 0.00808 0.00100 1 09/11/2023 19:24 WG2129755 1,2-Dichloroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1-Dichloroethene 0.0553 0.00100 1 09/11/2023 19:24 WG2129755 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 19:24 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 19:24 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 19:24 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 19:24 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 19:24 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 6 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 6 of 47 SAMPLE RESULTS - 01 L1654128 MW-20 Collected date/time: 09/07/23 08:30 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 19:24 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 19:24 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 19:24 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 19:24 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 19:24 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 19:24 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 19:24 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 19:24 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Styrene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 19:24 WG2129755 Toluene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 19:24 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 19:24 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 19:24 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 19:24 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 19:24 WG2129755 Vinyl chloride ND 0.00100 1 09/11/2023 19:24 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 19:24 WG2129755 (S) Toluene-d8 102 80.0-120 09/11/2023 19:24 WG2129755 (S) 4-Bromofluorobenzene 101 77.0-126 09/11/2023 19:24 WG2129755 (S) 1,2-Dichloroethane-d4 98.9 70.0-130 09/11/2023 19:24 WG2129755 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.176 0.000400 1 09/13/2023 00:17 WG2129848 (S) Nitrobenzene-d5 51.2 10.0-120 09/13/2023 00:17 WG2129848 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 7 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 7 of 47 SAMPLE RESULTS - 02 L1654128 MW-14D Collected date/time: 09/07/23 08:08 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 12:56 WG2129692 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.362 0.0100 1 09/12/2023 21:40 WG2130299 Barium,Dissolved 0.102 0.00500 1 09/12/2023 21:40 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:40 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:40 WG2130299 Iron,Dissolved 0.200 B 0.100 1 09/12/2023 21:40 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:40 WG2130299 Manganese,Dissolved 0.0877 0.0100 1 09/12/2023 21:40 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:40 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:40 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 19:43 WG2129755 Acrolein ND 0.0500 1 09/11/2023 19:43 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 19:43 WG2129755 Benzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 19:43 WG2129755 Bromoform ND 0.00100 1 09/11/2023 19:43 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 19:43 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 19:43 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 19:43 WG2129755 Chloroethane 0.221 0.0250 5 09/16/2023 02:06 WG2133344 Chloroform ND 0.00500 1 09/11/2023 19:43 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 19:43 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 19:43 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 19:43 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 19:43 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 19:43 WG2129755 1,1-Dichloroethane 0.132 0.00500 5 09/16/2023 02:06 WG2133344 1,2-Dichloroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1-Dichloroethene 0.0141 0.00100 1 09/11/2023 19:43 WG2129755 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 19:43 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 19:43 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 19:43 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 19:43 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 19:43 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 8 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 8 of 47 SAMPLE RESULTS - 02 L1654128 MW-14D Collected date/time: 09/07/23 08:08 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 19:43 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 19:43 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 19:43 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 19:43 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 19:43 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 19:43 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 19:43 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 19:43 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Styrene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 19:43 WG2129755 Toluene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 19:43 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 19:43 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 19:43 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 19:43 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 19:43 WG2129755 Vinyl chloride 0.00258 0.00100 1 09/11/2023 19:43 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 19:43 WG2129755 (S) Toluene-d8 102 80.0-120 09/11/2023 19:43 WG2129755 (S) Toluene-d8 111 80.0-120 09/16/2023 02:06 WG2133344 (S) 4-Bromofluorobenzene 99.5 77.0-126 09/11/2023 19:43 WG2129755 (S) 4-Bromofluorobenzene 104 77.0-126 09/16/2023 02:06 WG2133344 (S) 1,2-Dichloroethane-d4 101 70.0-130 09/11/2023 19:43 WG2129755 (S) 1,2-Dichloroethane-d4 108 70.0-130 09/16/2023 02:06 WG2133344 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/13/2023 11:33 WG2129851 Acenaphthylene ND 0.00100 1 09/13/2023 11:33 WG2129851 Anthracene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzidine ND J4 0.0100 1 09/13/2023 11:33 WG2129851 Benzo(a)anthracene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzo(b)fluoranthene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzo(k)fluoranthene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzo(g,h,i)perylene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzo(a)pyrene ND 0.00100 1 09/13/2023 11:33 WG2129851 Bis(2-chlorethoxy)methane ND 0.0100 1 09/13/2023 11:33 WG2129851 Bis(2-chloroethyl)ether ND 0.0100 1 09/13/2023 11:33 WG2129851 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/13/2023 11:33 WG2129851 4-Bromophenyl-phenylether ND 0.0100 1 09/13/2023 11:33 WG2129851 2-Chloronaphthalene ND 0.00100 1 09/13/2023 11:33 WG2129851 4-Chlorophenyl-phenylether ND 0.0100 1 09/13/2023 11:33 WG2129851 Chrysene ND 0.00100 1 09/13/2023 11:33 WG2129851 Dibenz(a,h)anthracene ND 0.00100 1 09/13/2023 11:33 WG2129851 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 9 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 9 of 47 SAMPLE RESULTS - 02 L1654128 MW-14D Collected date/time: 09/07/23 08:08 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 09/13/2023 11:33 WG2129851 1,3-Dichlorobenzene ND 0.0100 1 09/13/2023 11:33 WG2129851 1,4-Dichlorobenzene ND 0.0100 1 09/13/2023 11:33 WG2129851 3,3-Dichlorobenzidine ND 0.0100 1 09/13/2023 11:33 WG2129851 2,4-Dinitrotoluene ND 0.0100 1 09/13/2023 11:33 WG2129851 2,6-Dinitrotoluene ND 0.0100 1 09/13/2023 11:33 WG2129851 Fluoranthene ND 0.00100 1 09/13/2023 11:33 WG2129851 Fluorene ND 0.00100 1 09/13/2023 11:33 WG2129851 Hexachlorobenzene ND 0.00100 1 09/13/2023 11:33 WG2129851 Hexachloro-1,3-butadiene ND 0.0100 1 09/13/2023 11:33 WG2129851 Hexachlorocyclopentadiene ND 0.0100 1 09/13/2023 11:33 WG2129851 Hexachloroethane ND 0.0100 1 09/13/2023 11:33 WG2129851 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/13/2023 11:33 WG2129851 Isophorone ND 0.0100 1 09/13/2023 11:33 WG2129851 Naphthalene ND 0.00100 1 09/13/2023 11:33 WG2129851 Nitrobenzene ND 0.0100 1 09/13/2023 11:33 WG2129851 n-Nitrosodimethylamine ND 0.0100 1 09/13/2023 11:33 WG2129851 n-Nitrosodiphenylamine ND 0.0100 1 09/13/2023 11:33 WG2129851 n-Nitrosodi-n-propylamine ND 0.0100 1 09/13/2023 11:33 WG2129851 Phenanthrene ND 0.00100 1 09/13/2023 11:33 WG2129851 Benzylbutyl phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Di-n-butyl phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Diethyl phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Dimethyl phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Di-n-octyl phthalate ND 0.00300 1 09/13/2023 11:33 WG2129851 Pyrene ND 0.00100 1 09/13/2023 11:33 WG2129851 1,2,4-Trichlorobenzene ND 0.0100 1 09/13/2023 11:33 WG2129851 4-Chloro-3-methylphenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2-Chlorophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2,4-Dichlorophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2,4-Dimethylphenol ND 0.0100 1 09/13/2023 11:33 WG2129851 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2,4-Dinitrophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2-Nitrophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 4-Nitrophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 Pentachlorophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 Phenol ND 0.0100 1 09/13/2023 11:33 WG2129851 2,4,6-Trichlorophenol ND 0.0100 1 09/13/2023 11:33 WG2129851 (S) 2-Fluorophenol 30.0 10.0-120 09/13/2023 11:33 WG2129851 (S) Phenol-d5 21.4 10.0-120 09/13/2023 11:33 WG2129851 (S) Nitrobenzene-d5 60.3 10.0-127 09/13/2023 11:33 WG2129851 (S) 2-Fluorobiphenyl 52.9 10.0-130 09/13/2023 11:33 WG2129851 (S) 2,4,6-Tribromophenol 39.4 10.0-155 09/13/2023 11:33 WG2129851 (S) p-Terphenyl-d14 45.5 10.0-128 09/13/2023 11:33 WG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000400 1 09/12/2023 23:20 WG2129848 (S) Nitrobenzene-d5 56.4 10.0-120 09/12/2023 23:20 WG2129848 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 10 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 10 of 47 SAMPLE RESULTS - 03 L1654128 MW-14S Collected date/time: 09/07/23 08:50 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 12:59 WG2129692 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0161 0.0100 1 09/12/2023 21:43 WG2130299 Barium,Dissolved 0.0177 0.00500 1 09/12/2023 21:43 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:43 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:43 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:43 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:43 WG2130299 Manganese,Dissolved 5.80 0.0100 1 09/12/2023 21:43 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:43 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:43 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 1.00 20 09/11/2023 23:18 WG2129755 Acrolein ND 1.00 20 09/11/2023 23:18 WG2129755 Acrylonitrile ND 0.200 20 09/11/2023 23:18 WG2129755 Benzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Bromobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Bromodichloromethane ND 0.0200 20 09/11/2023 23:18 WG2129755 Bromoform ND 0.0200 20 09/11/2023 23:18 WG2129755 Bromomethane ND 0.100 20 09/11/2023 23:18 WG2129755 n-Butylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 sec-Butylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 tert-Butylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Carbon tetrachloride ND 0.0200 20 09/11/2023 23:18 WG2129755 Chlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Chlorodibromomethane ND 0.0200 20 09/11/2023 23:18 WG2129755 Chloroethane ND 0.100 20 09/11/2023 23:18 WG2129755 Chloroform ND 0.100 20 09/11/2023 23:18 WG2129755 Chloromethane ND 0.0500 20 09/11/2023 23:18 WG2129755 2-Chlorotoluene ND 0.0200 20 09/11/2023 23:18 WG2129755 4-Chlorotoluene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.100 20 09/11/2023 23:18 WG2129755 1,2-Dibromoethane ND 0.0200 20 09/11/2023 23:18 WG2129755 Dibromomethane ND 0.0200 20 09/11/2023 23:18 WG2129755 1,2-Dichlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,3-Dichlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,4-Dichlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Dichlorodifluoromethane ND 0.100 20 09/11/2023 23:18 WG2129755 1,1-Dichloroethane 3.73 0.500 500 09/16/2023 02:28 WG2133344 1,2-Dichloroethane 0.160 0.0200 20 09/11/2023 23:18 WG2129755 1,1-Dichloroethene 46.2 0.500 500 09/16/2023 02:28 WG2133344 cis-1,2-Dichloroethene ND 0.0200 20 09/11/2023 23:18 WG2129755 trans-1,2-Dichloroethene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,2-Dichloropropane ND 0.0200 20 09/11/2023 23:18 WG2129755 1,1-Dichloropropene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,3-Dichloropropane ND 0.0200 20 09/11/2023 23:18 WG2129755 cis-1,3-Dichloropropene ND 0.0200 20 09/11/2023 23:18 WG2129755 trans-1,3-Dichloropropene ND 0.0200 20 09/11/2023 23:18 WG2129755 2,2-Dichloropropane ND 0.0200 20 09/11/2023 23:18 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 11 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 11 of 47 SAMPLE RESULTS - 03 L1654128 MW-14S Collected date/time: 09/07/23 08:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.0200 20 09/11/2023 23:18 WG2129755 Ethylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Hexachloro-1,3-butadiene ND 0.0200 20 09/11/2023 23:18 WG2129755 Isopropylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 p-Isopropyltoluene ND 0.0200 20 09/11/2023 23:18 WG2129755 2-Butanone (MEK)ND 0.200 20 09/11/2023 23:18 WG2129755 Methylene Chloride ND 0.100 20 09/11/2023 23:18 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.200 20 09/11/2023 23:18 WG2129755 Methyl tert-butyl ether ND 0.0200 20 09/11/2023 23:18 WG2129755 Naphthalene ND 0.100 20 09/11/2023 23:18 WG2129755 n-Propylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Styrene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,1,1,2-Tetrachloroethane ND 0.0200 20 09/11/2023 23:18 WG2129755 1,1,2,2-Tetrachloroethane ND 0.0200 20 09/11/2023 23:18 WG2129755 1,1,2-Trichlorotrifluoroethane 0.132 0.0200 20 09/11/2023 23:18 WG2129755 Tetrachloroethene 0.0541 0.0200 20 09/11/2023 23:18 WG2129755 Toluene 0.0411 0.0200 20 09/11/2023 23:18 WG2129755 1,2,3-Trichlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,2,4-Trichlorobenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,1,1-Trichloroethane 0.268 0.0200 20 09/11/2023 23:18 WG2129755 1,1,2-Trichloroethane 0.0961 0.0200 20 09/11/2023 23:18 WG2129755 Trichloroethene 0.111 0.0200 20 09/11/2023 23:18 WG2129755 Trichlorofluoromethane ND 0.100 20 09/11/2023 23:18 WG2129755 1,2,3-Trichloropropane ND 0.0500 20 09/11/2023 23:18 WG2129755 1,2,4-Trimethylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,2,3-Trimethylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 1,3,5-Trimethylbenzene ND 0.0200 20 09/11/2023 23:18 WG2129755 Vinyl chloride ND 0.0200 20 09/11/2023 23:18 WG2129755 Xylenes, Total ND 0.0600 20 09/11/2023 23:18 WG2129755 (S) Toluene-d8 104 80.0-120 09/11/2023 23:18 WG2129755 (S) Toluene-d8 114 80.0-120 09/16/2023 02:28 WG2133344 (S) 4-Bromofluorobenzene 102 77.0-126 09/11/2023 23:18 WG2129755 (S) 4-Bromofluorobenzene 106 77.0-126 09/16/2023 02:28 WG2133344 (S) 1,2-Dichloroethane-d4 103 70.0-130 09/11/2023 23:18 WG2129755 (S) 1,2-Dichloroethane-d4 102 70.0-130 09/16/2023 02:28 WG2133344 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/13/2023 11:54 WG2129851 Acenaphthylene ND 0.00100 1 09/13/2023 11:54 WG2129851 Anthracene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzidine ND J4 0.0100 1 09/13/2023 11:54 WG2129851 Benzo(a)anthracene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzo(b)fluoranthene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzo(k)fluoranthene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzo(g,h,i)perylene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzo(a)pyrene ND 0.00100 1 09/13/2023 11:54 WG2129851 Bis(2-chlorethoxy)methane ND 0.0100 1 09/13/2023 11:54 WG2129851 Bis(2-chloroethyl)ether ND 0.0100 1 09/13/2023 11:54 WG2129851 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/13/2023 11:54 WG2129851 4-Bromophenyl-phenylether ND 0.0100 1 09/13/2023 11:54 WG2129851 2-Chloronaphthalene ND 0.00100 1 09/13/2023 11:54 WG2129851 4-Chlorophenyl-phenylether ND 0.0100 1 09/13/2023 11:54 WG2129851 Chrysene ND 0.00100 1 09/13/2023 11:54 WG2129851 Dibenz(a,h)anthracene ND 0.00100 1 09/13/2023 11:54 WG2129851 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 12 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 12 of 47 SAMPLE RESULTS - 03 L1654128 MW-14S Collected date/time: 09/07/23 08:50 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 09/13/2023 11:54 WG2129851 1,3-Dichlorobenzene ND 0.0100 1 09/13/2023 11:54 WG2129851 1,4-Dichlorobenzene ND 0.0100 1 09/13/2023 11:54 WG2129851 3,3-Dichlorobenzidine ND 0.0100 1 09/13/2023 11:54 WG2129851 2,4-Dinitrotoluene ND 0.0100 1 09/13/2023 11:54 WG2129851 2,6-Dinitrotoluene ND 0.0100 1 09/13/2023 11:54 WG2129851 Fluoranthene ND 0.00100 1 09/13/2023 11:54 WG2129851 Fluorene ND 0.00100 1 09/13/2023 11:54 WG2129851 Hexachlorobenzene ND 0.00100 1 09/13/2023 11:54 WG2129851 Hexachloro-1,3-butadiene ND 0.0100 1 09/13/2023 11:54 WG2129851 Hexachlorocyclopentadiene ND 0.0100 1 09/13/2023 11:54 WG2129851 Hexachloroethane ND 0.0100 1 09/13/2023 11:54 WG2129851 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/13/2023 11:54 WG2129851 Isophorone ND 0.0100 1 09/13/2023 11:54 WG2129851 Naphthalene ND 0.00100 1 09/13/2023 11:54 WG2129851 Nitrobenzene ND 0.0100 1 09/13/2023 11:54 WG2129851 n-Nitrosodimethylamine ND 0.0100 1 09/13/2023 11:54 WG2129851 n-Nitrosodiphenylamine ND 0.0100 1 09/13/2023 11:54 WG2129851 n-Nitrosodi-n-propylamine ND 0.0100 1 09/13/2023 11:54 WG2129851 Phenanthrene ND 0.00100 1 09/13/2023 11:54 WG2129851 Benzylbutyl phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Di-n-butyl phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Diethyl phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Dimethyl phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Di-n-octyl phthalate ND 0.00300 1 09/13/2023 11:54 WG2129851 Pyrene ND 0.00100 1 09/13/2023 11:54 WG2129851 1,2,4-Trichlorobenzene ND 0.0100 1 09/13/2023 11:54 WG2129851 4-Chloro-3-methylphenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2-Chlorophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2,4-Dichlorophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2,4-Dimethylphenol ND 0.0100 1 09/13/2023 11:54 WG2129851 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2,4-Dinitrophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2-Nitrophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 4-Nitrophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 Pentachlorophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 Phenol ND 0.0100 1 09/13/2023 11:54 WG2129851 2,4,6-Trichlorophenol ND 0.0100 1 09/13/2023 11:54 WG2129851 (S) 2-Fluorophenol 25.1 10.0-120 09/13/2023 11:54 WG2129851 (S) Phenol-d5 21.4 10.0-120 09/13/2023 11:54 WG2129851 (S) Nitrobenzene-d5 52.6 10.0-127 09/13/2023 11:54 WG2129851 (S) 2-Fluorobiphenyl 47.4 10.0-130 09/13/2023 11:54 WG2129851 (S) 2,4,6-Tribromophenol 40.2 10.0-155 09/13/2023 11:54 WG2129851 (S) p-Terphenyl-d14 40.8 10.0-128 09/13/2023 11:54 WG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.131 0.000400 1 09/12/2023 23:39 WG2129848 (S) Nitrobenzene-d5 53.4 10.0-120 09/12/2023 23:39 WG2129848 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 13 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 13 of 47 SAMPLE RESULTS - 04 L1654128 MW-10B Collected date/time: 09/07/23 09:50 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:01 WG2129692 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0154 0.0100 1 09/12/2023 21:46 WG2130299 Barium,Dissolved 0.344 0.00500 1 09/12/2023 21:46 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:46 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:46 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:46 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:46 WG2130299 Manganese,Dissolved 0.485 0.0100 1 09/12/2023 21:46 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:46 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:46 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 20:03 WG2129755 Acrolein ND 0.0500 1 09/11/2023 20:03 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 20:03 WG2129755 Benzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 20:03 WG2129755 Bromoform ND 0.00100 1 09/11/2023 20:03 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 20:03 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 20:03 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 20:03 WG2129755 Chloroethane ND 0.00500 1 09/15/2023 21:48 WG2133344 Chloroform ND 0.00500 1 09/11/2023 20:03 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 20:03 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 20:03 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 20:03 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 20:03 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 20:03 WG2129755 1,1-Dichloroethane 0.00371 0.00100 1 09/15/2023 21:48 WG2133344 1,2-Dichloroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1-Dichloroethene 0.0355 0.00100 1 09/11/2023 20:03 WG2129755 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:03 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 20:03 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:03 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:03 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 20:03 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 14 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 14 of 47 SAMPLE RESULTS - 04 L1654128 MW-10B Collected date/time: 09/07/23 09:50 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 20:03 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 20:03 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 20:03 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 20:03 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 20:03 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 20:03 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 20:03 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 20:03 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Styrene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 20:03 WG2129755 Toluene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 20:03 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 20:03 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 20:03 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 20:03 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 20:03 WG2129755 Vinyl chloride ND 0.00100 1 09/11/2023 20:03 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 20:03 WG2129755 (S) Toluene-d8 104 80.0-120 09/11/2023 20:03 WG2129755 (S) Toluene-d8 113 80.0-120 09/15/2023 21:48 WG2133344 (S) 4-Bromofluorobenzene 99.3 77.0-126 09/11/2023 20:03 WG2129755 (S) 4-Bromofluorobenzene 105 77.0-126 09/15/2023 21:48 WG2133344 (S) 1,2-Dichloroethane-d4 99.8 70.0-130 09/11/2023 20:03 WG2129755 (S) 1,2-Dichloroethane-d4 106 70.0-130 09/15/2023 21:48 WG2133344 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/13/2023 12:16 WG2129851 Acenaphthylene ND 0.00100 1 09/13/2023 12:16 WG2129851 Anthracene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzidine ND J4 0.0100 1 09/13/2023 12:16 WG2129851 Benzo(a)anthracene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzo(b)fluoranthene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzo(k)fluoranthene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzo(g,h,i)perylene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzo(a)pyrene ND 0.00100 1 09/13/2023 12:16 WG2129851 Bis(2-chlorethoxy)methane ND 0.0100 1 09/13/2023 12:16 WG2129851 Bis(2-chloroethyl)ether ND 0.0100 1 09/13/2023 12:16 WG2129851 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/13/2023 12:16 WG2129851 4-Bromophenyl-phenylether ND 0.0100 1 09/13/2023 12:16 WG2129851 2-Chloronaphthalene ND 0.00100 1 09/13/2023 12:16 WG2129851 4-Chlorophenyl-phenylether ND 0.0100 1 09/13/2023 12:16 WG2129851 Chrysene ND 0.00100 1 09/13/2023 12:16 WG2129851 Dibenz(a,h)anthracene ND 0.00100 1 09/13/2023 12:16 WG2129851 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 15 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 15 of 47 SAMPLE RESULTS - 04 L1654128 MW-10B Collected date/time: 09/07/23 09:50 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 09/13/2023 12:16 WG2129851 1,3-Dichlorobenzene ND 0.0100 1 09/13/2023 12:16 WG2129851 1,4-Dichlorobenzene ND 0.0100 1 09/13/2023 12:16 WG2129851 3,3-Dichlorobenzidine ND 0.0100 1 09/13/2023 12:16 WG2129851 2,4-Dinitrotoluene ND 0.0100 1 09/13/2023 12:16 WG2129851 2,6-Dinitrotoluene ND 0.0100 1 09/13/2023 12:16 WG2129851 Fluoranthene ND 0.00100 1 09/13/2023 12:16 WG2129851 Fluorene ND 0.00100 1 09/13/2023 12:16 WG2129851 Hexachlorobenzene ND 0.00100 1 09/13/2023 12:16 WG2129851 Hexachloro-1,3-butadiene ND 0.0100 1 09/13/2023 12:16 WG2129851 Hexachlorocyclopentadiene ND 0.0100 1 09/13/2023 12:16 WG2129851 Hexachloroethane ND 0.0100 1 09/13/2023 12:16 WG2129851 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/13/2023 12:16 WG2129851 Isophorone ND 0.0100 1 09/13/2023 12:16 WG2129851 Naphthalene ND 0.00100 1 09/13/2023 12:16 WG2129851 Nitrobenzene ND 0.0100 1 09/13/2023 12:16 WG2129851 n-Nitrosodimethylamine ND 0.0100 1 09/13/2023 12:16 WG2129851 n-Nitrosodiphenylamine ND 0.0100 1 09/13/2023 12:16 WG2129851 n-Nitrosodi-n-propylamine ND 0.0100 1 09/13/2023 12:16 WG2129851 Phenanthrene ND 0.00100 1 09/13/2023 12:16 WG2129851 Benzylbutyl phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Di-n-butyl phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Diethyl phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Dimethyl phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Di-n-octyl phthalate ND 0.00300 1 09/13/2023 12:16 WG2129851 Pyrene ND 0.00100 1 09/13/2023 12:16 WG2129851 1,2,4-Trichlorobenzene ND 0.0100 1 09/13/2023 12:16 WG2129851 4-Chloro-3-methylphenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2-Chlorophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2,4-Dichlorophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2,4-Dimethylphenol ND 0.0100 1 09/13/2023 12:16 WG2129851 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2,4-Dinitrophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2-Nitrophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 4-Nitrophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 Pentachlorophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 Phenol ND 0.0100 1 09/13/2023 12:16 WG2129851 2,4,6-Trichlorophenol ND 0.0100 1 09/13/2023 12:16 WG2129851 (S) 2-Fluorophenol 28.0 10.0-120 09/13/2023 12:16 WG2129851 (S) Phenol-d5 18.9 10.0-120 09/13/2023 12:16 WG2129851 (S) Nitrobenzene-d5 53.4 10.0-127 09/13/2023 12:16 WG2129851 (S) 2-Fluorobiphenyl 50.8 10.0-130 09/13/2023 12:16 WG2129851 (S) 2,4,6-Tribromophenol 49.5 10.0-155 09/13/2023 12:16 WG2129851 (S) p-Terphenyl-d14 54.8 10.0-128 09/13/2023 12:16 WG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0184 0.000400 1 09/12/2023 23:58 WG2129848 (S) Nitrobenzene-d5 50.8 10.0-120 09/12/2023 23:58 WG2129848 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 16 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 16 of 47 SAMPLE RESULTS - 05 L1654128 MW-16 Collected date/time: 09/07/23 09:58 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/12/2023 01:04 WG2129796 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0905 0.0100 1 09/12/2023 21:49 WG2130299 Barium,Dissolved 0.171 0.00500 1 09/12/2023 21:49 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:49 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:49 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:49 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:49 WG2130299 Manganese,Dissolved 0.152 0.0100 1 09/12/2023 21:49 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:49 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:49 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 20:22 WG2129755 Acrolein ND 0.0500 1 09/11/2023 20:22 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 20:22 WG2129755 Benzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 20:22 WG2129755 Bromoform ND 0.00100 1 09/11/2023 20:22 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 20:22 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 20:22 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 20:22 WG2129755 Chloroethane ND 0.00500 1 09/11/2023 20:22 WG2129755 Chloroform ND 0.00500 1 09/11/2023 20:22 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 20:22 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 20:22 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 20:22 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 20:22 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 20:22 WG2129755 1,1-Dichloroethane 0.0128 0.00100 1 09/11/2023 20:22 WG2129755 1,2-Dichloroethane 0.00131 0.00100 1 09/11/2023 20:22 WG2129755 1,1-Dichloroethene 0.203 0.00500 5 09/16/2023 02:49 WG2133344 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:22 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 20:22 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:22 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:22 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 20:22 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 17 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 17 of 47 SAMPLE RESULTS - 05 L1654128 MW-16 Collected date/time: 09/07/23 09:58 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 20:22 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 20:22 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 20:22 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 20:22 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 20:22 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 20:22 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 20:22 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 20:22 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Styrene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 20:22 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 20:22 WG2129755 Toluene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 20:22 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 20:22 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 20:22 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 20:22 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 20:22 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 20:22 WG2129755 Vinyl chloride 0.00259 0.00100 1 09/11/2023 20:22 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 20:22 WG2129755 (S) Toluene-d8 103 80.0-120 09/11/2023 20:22 WG2129755 (S) Toluene-d8 111 80.0-120 09/16/2023 02:49 WG2133344 (S) 4-Bromofluorobenzene 98.0 77.0-126 09/11/2023 20:22 WG2129755 (S) 4-Bromofluorobenzene 106 77.0-126 09/16/2023 02:49 WG2133344 (S) 1,2-Dichloroethane-d4 98.9 70.0-130 09/11/2023 20:22 WG2129755 (S) 1,2-Dichloroethane-d4 109 70.0-130 09/16/2023 02:49 WG2133344 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/13/2023 12:38 WG2129851 Acenaphthylene ND 0.00100 1 09/13/2023 12:38 WG2129851 Anthracene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzidine ND J4 0.0100 1 09/13/2023 12:38 WG2129851 Benzo(a)anthracene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzo(b)fluoranthene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzo(k)fluoranthene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzo(g,h,i)perylene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzo(a)pyrene ND 0.00100 1 09/13/2023 12:38 WG2129851 Bis(2-chlorethoxy)methane ND 0.0100 1 09/13/2023 12:38 WG2129851 Bis(2-chloroethyl)ether ND 0.0100 1 09/13/2023 12:38 WG2129851 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/13/2023 12:38 WG2129851 4-Bromophenyl-phenylether ND 0.0100 1 09/13/2023 12:38 WG2129851 2-Chloronaphthalene ND 0.00100 1 09/13/2023 12:38 WG2129851 4-Chlorophenyl-phenylether ND 0.0100 1 09/13/2023 12:38 WG2129851 Chrysene ND 0.00100 1 09/13/2023 12:38 WG2129851 Dibenz(a,h)anthracene ND 0.00100 1 09/13/2023 12:38 WG2129851 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 18 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 18 of 47 SAMPLE RESULTS - 05 L1654128 MW-16 Collected date/time: 09/07/23 09:58 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 09/13/2023 12:38 WG2129851 1,3-Dichlorobenzene ND 0.0100 1 09/13/2023 12:38 WG2129851 1,4-Dichlorobenzene ND 0.0100 1 09/13/2023 12:38 WG2129851 3,3-Dichlorobenzidine ND 0.0100 1 09/13/2023 12:38 WG2129851 2,4-Dinitrotoluene ND 0.0100 1 09/13/2023 12:38 WG2129851 2,6-Dinitrotoluene ND 0.0100 1 09/13/2023 12:38 WG2129851 Fluoranthene ND 0.00100 1 09/13/2023 12:38 WG2129851 Fluorene ND 0.00100 1 09/13/2023 12:38 WG2129851 Hexachlorobenzene ND 0.00100 1 09/13/2023 12:38 WG2129851 Hexachloro-1,3-butadiene ND 0.0100 1 09/13/2023 12:38 WG2129851 Hexachlorocyclopentadiene ND 0.0100 1 09/13/2023 12:38 WG2129851 Hexachloroethane ND 0.0100 1 09/13/2023 12:38 WG2129851 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/13/2023 12:38 WG2129851 Isophorone ND 0.0100 1 09/13/2023 12:38 WG2129851 Naphthalene ND 0.00100 1 09/13/2023 12:38 WG2129851 Nitrobenzene ND 0.0100 1 09/13/2023 12:38 WG2129851 n-Nitrosodimethylamine ND 0.0100 1 09/13/2023 12:38 WG2129851 n-Nitrosodiphenylamine ND 0.0100 1 09/13/2023 12:38 WG2129851 n-Nitrosodi-n-propylamine ND 0.0100 1 09/13/2023 12:38 WG2129851 Phenanthrene ND 0.00100 1 09/13/2023 12:38 WG2129851 Benzylbutyl phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Di-n-butyl phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Diethyl phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Dimethyl phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Di-n-octyl phthalate ND 0.00300 1 09/13/2023 12:38 WG2129851 Pyrene ND 0.00100 1 09/13/2023 12:38 WG2129851 1,2,4-Trichlorobenzene ND 0.0100 1 09/13/2023 12:38 WG2129851 4-Chloro-3-methylphenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2-Chlorophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2,4-Dichlorophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2,4-Dimethylphenol ND 0.0100 1 09/13/2023 12:38 WG2129851 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2,4-Dinitrophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2-Nitrophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 4-Nitrophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 Pentachlorophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 Phenol ND 0.0100 1 09/13/2023 12:38 WG2129851 2,4,6-Trichlorophenol ND 0.0100 1 09/13/2023 12:38 WG2129851 (S) 2-Fluorophenol 32.6 10.0-120 09/13/2023 12:38 WG2129851 (S) Phenol-d5 23.1 10.0-120 09/13/2023 12:38 WG2129851 (S) Nitrobenzene-d5 59.5 10.0-127 09/13/2023 12:38 WG2129851 (S) 2-Fluorobiphenyl 58.3 10.0-130 09/13/2023 12:38 WG2129851 (S) 2,4,6-Tribromophenol 46.1 10.0-155 09/13/2023 12:38 WG2129851 (S) p-Terphenyl-d14 51.5 10.0-128 09/13/2023 12:38 WG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.135 0.000400 1 09/14/2023 07:22 WG2130432 (S) Nitrobenzene-d5 25.3 10.0-120 09/14/2023 07:22 WG2130432 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 19 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 19 of 47 SAMPLE RESULTS - 06 L1654128 MW-19 Collected date/time: 09/07/23 10:45 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/12/2023 01:07 WG2129796 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0394 0.0100 1 09/12/2023 21:52 WG2130299 Barium,Dissolved 0.208 0.00500 1 09/12/2023 21:52 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:52 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:52 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:52 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:52 WG2130299 Manganese,Dissolved ND 0.0100 1 09/12/2023 21:52 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:52 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:52 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 20:42 WG2129755 Acrolein ND 0.0500 1 09/11/2023 20:42 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 20:42 WG2129755 Benzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 20:42 WG2129755 Bromoform ND 0.00100 1 09/11/2023 20:42 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 20:42 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 20:42 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 20:42 WG2129755 Chloroethane ND 0.00500 1 09/11/2023 20:42 WG2129755 Chloroform ND 0.00500 1 09/11/2023 20:42 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 20:42 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 20:42 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 20:42 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 20:42 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 20:42 WG2129755 1,1-Dichloroethane ND 0.00100 1 09/15/2023 22:09 WG2133344 1,2-Dichloroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1-Dichloroethene 0.00120 0.00100 1 09/15/2023 22:09 WG2133344 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:42 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 20:42 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:42 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 20:42 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 20:42 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 20 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 20 of 47 SAMPLE RESULTS - 06 L1654128 MW-19 Collected date/time: 09/07/23 10:45 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 20:42 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 20:42 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 20:42 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 20:42 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 20:42 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 20:42 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 20:42 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 20:42 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Styrene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 20:42 WG2129755 Toluene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 20:42 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 20:42 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 20:42 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 20:42 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 20:42 WG2129755 Vinyl chloride ND 0.00100 1 09/11/2023 20:42 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 20:42 WG2129755 (S) Toluene-d8 103 80.0-120 09/11/2023 20:42 WG2129755 (S) Toluene-d8 114 80.0-120 09/15/2023 22:09 WG2133344 (S) 4-Bromofluorobenzene 99.4 77.0-126 09/11/2023 20:42 WG2129755 (S) 4-Bromofluorobenzene 105 77.0-126 09/15/2023 22:09 WG2133344 (S) 1,2-Dichloroethane-d4 104 70.0-130 09/11/2023 20:42 WG2129755 (S) 1,2-Dichloroethane-d4 110 70.0-130 09/15/2023 22:09 WG2133344 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00299 B 0.000420 1.05 09/14/2023 07:41 WG2130432 1,4-Dioxane 0.0216 B Q 0.000400 1 09/16/2023 01:32 WG2132810 (S) Nitrobenzene-d5 35.0 10.0-120 09/14/2023 07:41 WG2130432 (S) Nitrobenzene-d5 53.5 10.0-120 09/16/2023 01:32 WG2132810 Sample Narrative: L1654128-06 WG2130432, WG2132810: Duplicate Analysis performed due to QC failure. Results don't confirm; both analyses reported. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 21 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 21 of 47 SAMPLE RESULTS - 07 L1654128 DUPMW-10B Collected date/time: 09/07/23 00:00 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/12/2023 01:09 WG2129796 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/12/2023 21:55 WG2130299 Barium,Dissolved 0.339 0.00500 1 09/12/2023 21:55 WG2130299 Cadmium,Dissolved ND 0.00200 1 09/12/2023 21:55 WG2130299 Chromium,Dissolved ND 0.0100 1 09/12/2023 21:55 WG2130299 Iron,Dissolved ND 0.100 1 09/12/2023 21:55 WG2130299 Lead,Dissolved ND 0.00600 1 09/12/2023 21:55 WG2130299 Manganese,Dissolved 0.477 0.0100 1 09/12/2023 21:55 WG2130299 Selenium,Dissolved ND 0.0100 1 09/12/2023 21:55 WG2130299 Silver,Dissolved ND 0.00500 1 09/12/2023 21:55 WG2130299 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/11/2023 21:01 WG2129755 Acrolein ND 0.0500 1 09/11/2023 21:01 WG2129755 Acrylonitrile ND 0.0100 1 09/11/2023 21:01 WG2129755 Benzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Bromobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Bromodichloromethane ND 0.00100 1 09/11/2023 21:01 WG2129755 Bromoform ND 0.00100 1 09/11/2023 21:01 WG2129755 Bromomethane ND 0.00500 1 09/11/2023 21:01 WG2129755 n-Butylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 sec-Butylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 tert-Butylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Carbon tetrachloride ND 0.00100 1 09/11/2023 21:01 WG2129755 Chlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Chlorodibromomethane ND 0.00100 1 09/11/2023 21:01 WG2129755 Chloroethane ND 0.00500 1 09/11/2023 21:01 WG2129755 Chloroform ND 0.00500 1 09/11/2023 21:01 WG2129755 Chloromethane ND 0.00250 1 09/11/2023 21:01 WG2129755 2-Chlorotoluene ND 0.00100 1 09/11/2023 21:01 WG2129755 4-Chlorotoluene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/11/2023 21:01 WG2129755 1,2-Dibromoethane ND 0.00100 1 09/11/2023 21:01 WG2129755 Dibromomethane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2-Dichlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,3-Dichlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,4-Dichlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Dichlorodifluoromethane ND 0.00500 1 09/11/2023 21:01 WG2129755 1,1-Dichloroethane 0.00445 0.00100 1 09/11/2023 21:01 WG2129755 1,2-Dichloroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1-Dichloroethene 0.0357 0.00100 1 09/11/2023 21:01 WG2129755 cis-1,2-Dichloroethene ND 0.00100 1 09/11/2023 21:01 WG2129755 trans-1,2-Dichloroethene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2-Dichloropropane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1-Dichloropropene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,3-Dichloropropane ND 0.00100 1 09/11/2023 21:01 WG2129755 cis-1,3-Dichloropropene ND 0.00100 1 09/11/2023 21:01 WG2129755 trans-1,3-Dichloropropene ND 0.00100 1 09/11/2023 21:01 WG2129755 2,2-Dichloropropane ND 0.00100 1 09/11/2023 21:01 WG2129755 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 22 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 22 of 47 SAMPLE RESULTS - 07 L1654128 DUPMW-10B Collected date/time: 09/07/23 00:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/11/2023 21:01 WG2129755 Ethylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Hexachloro-1,3-butadiene ND 0.00100 1 09/11/2023 21:01 WG2129755 Isopropylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 p-Isopropyltoluene ND 0.00100 1 09/11/2023 21:01 WG2129755 2-Butanone (MEK)ND 0.0100 1 09/11/2023 21:01 WG2129755 Methylene Chloride ND 0.00500 1 09/11/2023 21:01 WG2129755 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/11/2023 21:01 WG2129755 Methyl tert-butyl ether ND 0.00100 1 09/11/2023 21:01 WG2129755 Naphthalene ND 0.00500 1 09/11/2023 21:01 WG2129755 n-Propylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Styrene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 Tetrachloroethene ND 0.00100 1 09/11/2023 21:01 WG2129755 Toluene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2,3-Trichlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2,4-Trichlorobenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1,1-Trichloroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 1,1,2-Trichloroethane ND 0.00100 1 09/11/2023 21:01 WG2129755 Trichloroethene ND 0.00100 1 09/11/2023 21:01 WG2129755 Trichlorofluoromethane ND 0.00500 1 09/11/2023 21:01 WG2129755 1,2,3-Trichloropropane ND 0.00250 1 09/11/2023 21:01 WG2129755 1,2,4-Trimethylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,2,3-Trimethylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 1,3,5-Trimethylbenzene ND 0.00100 1 09/11/2023 21:01 WG2129755 Vinyl chloride ND 0.00100 1 09/11/2023 21:01 WG2129755 Xylenes, Total ND 0.00300 1 09/11/2023 21:01 WG2129755 (S) Toluene-d8 103 80.0-120 09/11/2023 21:01 WG2129755 (S) 4-Bromofluorobenzene 101 77.0-126 09/11/2023 21:01 WG2129755 (S) 1,2-Dichloroethane-d4 101 70.0-130 09/11/2023 21:01 WG2129755 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/15/2023 13:22 WG2130427 Acenaphthylene ND 0.00100 1 09/15/2023 13:22 WG2130427 Anthracene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzidine ND J4 0.0100 1 09/15/2023 13:22 WG2130427 Benzo(a)anthracene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzo(b)fluoranthene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzo(k)fluoranthene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzo(g,h,i)perylene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzo(a)pyrene ND 0.00100 1 09/15/2023 13:22 WG2130427 Bis(2-chlorethoxy)methane ND 0.0100 1 09/15/2023 13:22 WG2130427 Bis(2-chloroethyl)ether ND 0.0100 1 09/15/2023 13:22 WG2130427 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/15/2023 13:22 WG2130427 4-Bromophenyl-phenylether ND 0.0100 1 09/15/2023 13:22 WG2130427 2-Chloronaphthalene ND 0.00100 1 09/15/2023 13:22 WG2130427 4-Chlorophenyl-phenylether ND 0.0100 1 09/15/2023 13:22 WG2130427 Chrysene ND 0.00100 1 09/15/2023 13:22 WG2130427 Dibenz(a,h)anthracene ND 0.00100 1 09/15/2023 13:22 WG2130427 1,2-Dichlorobenzene ND 0.0100 1 09/15/2023 13:22 WG2130427 1,3-Dichlorobenzene ND 0.0100 1 09/15/2023 13:22 WG2130427 1,4-Dichlorobenzene ND 0.0100 1 09/15/2023 13:22 WG2130427 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 23 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 23 of 47 SAMPLE RESULTS - 07 L1654128 DUPMW-10B Collected date/time: 09/07/23 00:00 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/15/2023 13:22 WG2130427 2,4-Dinitrotoluene ND 0.0100 1 09/15/2023 13:22 WG2130427 2,6-Dinitrotoluene ND 0.0100 1 09/15/2023 13:22 WG2130427 Fluoranthene ND 0.00100 1 09/15/2023 13:22 WG2130427 Fluorene ND 0.00100 1 09/15/2023 13:22 WG2130427 Hexachlorobenzene ND 0.00100 1 09/15/2023 13:22 WG2130427 Hexachloro-1,3-butadiene ND 0.0100 1 09/15/2023 13:22 WG2130427 Hexachlorocyclopentadiene ND 0.0100 1 09/15/2023 13:22 WG2130427 Hexachloroethane ND 0.0100 1 09/15/2023 13:22 WG2130427 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/15/2023 13:22 WG2130427 Isophorone ND 0.0100 1 09/15/2023 13:22 WG2130427 Naphthalene ND 0.00100 1 09/15/2023 13:22 WG2130427 Nitrobenzene ND 0.0100 1 09/15/2023 13:22 WG2130427 n-Nitrosodimethylamine ND 0.0100 1 09/15/2023 13:22 WG2130427 n-Nitrosodiphenylamine ND 0.0100 1 09/15/2023 13:22 WG2130427 n-Nitrosodi-n-propylamine ND 0.0100 1 09/15/2023 13:22 WG2130427 Phenanthrene ND 0.00100 1 09/15/2023 13:22 WG2130427 Benzylbutyl phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Di-n-butyl phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Diethyl phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Dimethyl phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Di-n-octyl phthalate ND 0.00300 1 09/15/2023 13:22 WG2130427 Pyrene ND 0.00100 1 09/15/2023 13:22 WG2130427 1,2,4-Trichlorobenzene ND 0.0100 1 09/15/2023 13:22 WG2130427 4-Chloro-3-methylphenol ND J4 0.0100 1 09/15/2023 13:22 WG2130427 2-Chlorophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 2,4-Dichlorophenol ND J4 0.0100 1 09/15/2023 13:22 WG2130427 2,4-Dimethylphenol ND 0.0100 1 09/15/2023 13:22 WG2130427 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/15/2023 13:22 WG2130427 2,4-Dinitrophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 2-Nitrophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 4-Nitrophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 Pentachlorophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 Phenol ND 0.0100 1 09/15/2023 13:22 WG2130427 2,4,6-Trichlorophenol ND 0.0100 1 09/15/2023 13:22 WG2130427 (S) 2-Fluorophenol 25.8 10.0-120 09/15/2023 13:22 WG2130427 (S) Phenol-d5 18.6 10.0-120 09/15/2023 13:22 WG2130427 (S) Nitrobenzene-d5 57.5 10.0-127 09/15/2023 13:22 WG2130427 (S) 2-Fluorobiphenyl 62.8 10.0-130 09/15/2023 13:22 WG2130427 (S) 2,4,6-Tribromophenol 65.5 10.0-155 09/15/2023 13:22 WG2130427 (S) p-Terphenyl-d14 64.9 10.0-128 09/15/2023 13:22 WG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0119 B 0.000408 1.02 09/14/2023 06:44 WG2130432 1,4-Dioxane 0.0247 B Q 0.000400 1 09/16/2023 01:51 WG2132810 (S) Nitrobenzene-d5 44.0 10.0-120 09/14/2023 06:44 WG2130432 (S) Nitrobenzene-d5 48.8 10.0-120 09/16/2023 01:51 WG2132810 Sample Narrative: L1654128-07 WG2130432, WG2132810: Duplicate Analysis performed due to QC failure. Results don't confirm; both analyses reported. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 24 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 24 of 47 QUALITY CONTROL SUMMARYWG2129692 Mercury by Method 7470A L1654128-01,02,03,04 Method Blank (MB) (MB) R3972546-1 09/13/23 11:54 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3972546-2 09/13/23 11:57 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00289 96.5 80.0-120 L1653505-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653505-01 09/13/23 11:59 • (MS) R3972546-3 09/13/23 12:01 • (MSD) R3972546-4 09/13/23 12:04 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00200 0.00192 66.5 63.9 1 75.0-125 J6 J6 4.01 20 L1653881-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653881-03 09/13/23 12:06 • (MS) R3972546-5 09/13/23 12:08 • (MSD) R3972546-6 09/13/23 12:15 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00303 0.00300 101 100 1 75.0-125 0.960 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 25 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 25 of 47 QUALITY CONTROL SUMMARYWG2129796 Mercury by Method 7470A L1654128-05,06,07 Method Blank (MB) (MB) R3971741-1 09/12/23 00:36 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3971741-2 09/12/23 00:38 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00277 92.3 80.0-120 L1652460-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1652460-03 09/12/23 00:40 • (MS) R3971741-3 09/12/23 00:43 • (MSD) R3971741-4 09/12/23 00:45 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00289 0.00286 96.4 95.2 1 75.0-125 1.28 20 L1653889-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653889-03 09/12/23 00:48 • (MS) R3971741-5 09/12/23 00:50 • (MSD) R3971741-6 09/12/23 00:52 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00259 0.00254 86.5 84.7 1 75.0-125 2.14 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 26 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 26 of 47 QUALITY CONTROL SUMMARYWG2130299 Metals (ICP) by Method 6010B L1654128-01,02,03,04,05,06,07 Method Blank (MB) (MB) R3972274-1 09/12/23 20:54 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Arsenic,Dissolved U 0.00440 0.0100 Barium,Dissolved 0.00106 J 0.000736 0.00500 Cadmium,Dissolved U 0.000479 0.00200 Chromium,Dissolved U 0.00140 0.0100 Iron,Dissolved 0.0718 J 0.0180 0.100 Lead,Dissolved 0.00509 J 0.00299 0.00600 Manganese,Dissolved U 0.000934 0.0100 Selenium,Dissolved U 0.00735 0.0100 Silver,Dissolved U 0.00154 0.00500 Laboratory Control Sample (LCS) (LCS) R3972274-2 09/12/23 20:57 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Arsenic,Dissolved 1.00 1.00 100 80.0-120 Barium,Dissolved 1.00 1.03 103 80.0-120 Cadmium,Dissolved 1.00 0.971 97.1 80.0-120 Chromium,Dissolved 1.00 0.986 98.6 80.0-120 Iron,Dissolved 10.0 9.93 99.3 80.0-120 Lead,Dissolved 1.00 0.984 98.4 80.0-120 Manganese,Dissolved 1.00 1.01 101 80.0-120 Selenium,Dissolved 1.00 0.974 97.4 80.0-120 Silver,Dissolved 0.200 0.193 96.4 80.0-120 L1653889-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653889-03 09/12/23 21:00 • (MS) R3972274-4 09/12/23 21:05 • (MSD) R3972274-5 09/12/23 21:08 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Arsenic,Dissolved 1.00 ND 0.999 1.04 99.9 104 1 75.0-125 4.46 20 Barium,Dissolved 1.00 0.0681 1.05 1.10 98.7 103 1 75.0-125 4.40 20 Cadmium,Dissolved 1.00 ND 0.967 1.02 96.7 102 1 75.0-125 4.89 20 Chromium,Dissolved 1.00 ND 0.952 1.00 95.2 100 1 75.0-125 5.22 20 Iron,Dissolved 10.0 ND 9.55 10.0 95.2 99.9 1 75.0-125 4.81 20 Lead,Dissolved 1.00 ND 0.960 0.984 96.0 98.4 1 75.0-125 2.48 20 Manganese,Dissolved 1.00 0.0782 1.05 1.09 96.7 101 1 75.0-125 4.00 20 Selenium,Dissolved 1.00 ND 0.980 1.01 98.0 101 1 75.0-125 3.41 20 Silver,Dissolved 0.200 ND 0.193 0.201 95.7 99.8 1 75.0-125 4.16 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 27 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 27 of 47 QUALITY CONTROL SUMMARYWG2129755 Volatile Organic Compounds (GC/MS) by Method 8260B L1654128-01,02,03,04,05,06,07 Method Blank (MB) (MB) R3973804-2 09/11/23 16:14 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 28 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 28 of 47 QUALITY CONTROL SUMMARYWG2129755 Volatile Organic Compounds (GC/MS) by Method 8260B L1654128-01,02,03,04,05,06,07 Method Blank (MB) (MB) R3973804-2 09/11/23 16:14 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 102 80.0-120 (S) 4-Bromofluorobenzene 103 77.0-126 (S) 1,2-Dichloroethane-d4 101 70.0-130 Laboratory Control Sample (LCS) (LCS) R3973804-1 09/11/23 14:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acetone 0.0250 0.0365 146 19.0-160 Acrolein 0.0250 0.0273 109 10.0-160 Acrylonitrile 0.0250 0.0288 115 55.0-149 Benzene 0.00500 0.00486 97.2 70.0-123 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 29 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 29 of 47 QUALITY CONTROL SUMMARYWG2129755 Volatile Organic Compounds (GC/MS) by Method 8260B L1654128-01,02,03,04,05,06,07 Laboratory Control Sample (LCS) (LCS) R3973804-1 09/11/23 14:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Bromobenzene 0.00500 0.00426 85.2 73.0-121 Bromodichloromethane 0.00500 0.00493 98.6 75.0-120 Bromoform 0.00500 0.00465 93.0 68.0-132 Bromomethane 0.00500 0.00430 86.0 10.0-160 n-Butylbenzene 0.00500 0.00449 89.8 73.0-125 sec-Butylbenzene 0.00500 0.00478 95.6 75.0-125 tert-Butylbenzene 0.00500 0.00457 91.4 76.0-124 Carbon tetrachloride 0.00500 0.00532 106 68.0-126 Chlorobenzene 0.00500 0.00492 98.4 80.0-121 Chlorodibromomethane 0.00500 0.00474 94.8 77.0-125 Chloroethane 0.00500 0.00508 102 47.0-150 Chloroform 0.00500 0.00507 101 73.0-120 Chloromethane 0.00500 0.00508 102 41.0-142 2-Chlorotoluene 0.00500 0.00460 92.0 76.0-123 4-Chlorotoluene 0.00500 0.00412 82.4 75.0-122 1,2-Dibromo-3-Chloropropane 0.00500 0.00454 90.8 58.0-134 1,2-Dibromoethane 0.00500 0.00488 97.6 80.0-122 Dibromomethane 0.00500 0.00467 93.4 80.0-120 1,2-Dichlorobenzene 0.00500 0.00452 90.4 79.0-121 1,3-Dichlorobenzene 0.00500 0.00455 91.0 79.0-120 1,4-Dichlorobenzene 0.00500 0.00418 83.6 79.0-120 Dichlorodifluoromethane 0.00500 0.00509 102 51.0-149 1,1-Dichloroethane 0.00500 0.00496 99.2 70.0-126 1,2-Dichloroethane 0.00500 0.00470 94.0 70.0-128 1,1-Dichloroethene 0.00500 0.00541 108 71.0-124 cis-1,2-Dichloroethene 0.00500 0.00498 99.6 73.0-120 trans-1,2-Dichloroethene 0.00500 0.00502 100 73.0-120 1,2-Dichloropropane 0.00500 0.00492 98.4 77.0-125 1,1-Dichloropropene 0.00500 0.00506 101 74.0-126 1,3-Dichloropropane 0.00500 0.00472 94.4 80.0-120 cis-1,3-Dichloropropene 0.00500 0.00448 89.6 80.0-123 trans-1,3-Dichloropropene 0.00500 0.00448 89.6 78.0-124 2,2-Dichloropropane 0.00500 0.00480 96.0 58.0-130 Di-isopropyl ether 0.00500 0.00485 97.0 58.0-138 Ethylbenzene 0.00500 0.00490 98.0 79.0-123 Hexachloro-1,3-butadiene 0.00500 0.00461 92.2 54.0-138 Isopropylbenzene 0.00500 0.00510 102 76.0-127 p-Isopropyltoluene 0.00500 0.00461 92.2 76.0-125 2-Butanone (MEK)0.0250 0.0253 101 44.0-160 Methylene Chloride 0.00500 0.00456 91.2 67.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 30 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 30 of 47 QUALITY CONTROL SUMMARYWG2129755 Volatile Organic Compounds (GC/MS) by Method 8260B L1654128-01,02,03,04,05,06,07 Laboratory Control Sample (LCS) (LCS) R3973804-1 09/11/23 14:54 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 4-Methyl-2-pentanone (MIBK)0.0250 0.0263 105 68.0-142 Methyl tert-butyl ether 0.00500 0.00504 101 68.0-125 Naphthalene 0.00500 0.00417 83.4 54.0-135 n-Propylbenzene 0.00500 0.00435 87.0 77.0-124 Styrene 0.00500 0.00477 95.4 73.0-130 1,1,1,2-Tetrachloroethane 0.00500 0.00494 98.8 75.0-125 1,1,2,2-Tetrachloroethane 0.00500 0.00435 87.0 65.0-130 1,1,2-Trichlorotrifluoroethane 0.00500 0.00516 103 69.0-132 Tetrachloroethene 0.00500 0.00513 103 72.0-132 Toluene 0.00500 0.00474 94.8 79.0-120 1,2,3-Trichlorobenzene 0.00500 0.00447 89.4 50.0-138 1,2,4-Trichlorobenzene 0.00500 0.00446 89.2 57.0-137 1,1,1-Trichloroethane 0.00500 0.00536 107 73.0-124 1,1,2-Trichloroethane 0.00500 0.00477 95.4 80.0-120 Trichloroethene 0.00500 0.00504 101 78.0-124 Trichlorofluoromethane 0.00500 0.00512 102 59.0-147 1,2,3-Trichloropropane 0.00500 0.00445 89.0 73.0-130 1,2,4-Trimethylbenzene 0.00500 0.00439 87.8 76.0-121 1,2,3-Trimethylbenzene 0.00500 0.00439 87.8 77.0-120 1,3,5-Trimethylbenzene 0.00500 0.00416 83.2 76.0-122 Vinyl chloride 0.00500 0.00556 111 67.0-131 Xylenes, Total 0.0150 0.0147 98.0 79.0-123 (S) Toluene-d8 100 80.0-120 (S) 4-Bromofluorobenzene 106 77.0-126 (S) 1,2-Dichloroethane-d4 104 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 31 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 31 of 47 QUALITY CONTROL SUMMARYWG2133344 Volatile Organic Compounds (GC/MS) by Method 8260B L1654128-02,03,04,05,06 Method Blank (MB) (MB) R3974448-3 09/15/23 20:27 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Chloroethane U 0.000192 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,1-Dichloroethene U 0.000188 0.00100 (S) Toluene-d8 113 80.0-120 (S) 4-Bromofluorobenzene 102 77.0-126 (S) 1,2-Dichloroethane-d4 107 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3974448-1 09/15/23 19:01 • (LCSD) R3974448-2 09/15/23 19:23 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Chloroethane 0.00500 0.00564 0.00555 113 111 47.0-150 1.61 20 1,1-Dichloroethane 0.00500 0.00460 0.00473 92.0 94.6 70.0-126 2.79 20 1,1-Dichloroethene 0.00500 0.00467 0.00471 93.4 94.2 71.0-124 0.853 20 (S) Toluene-d8 109 111 80.0-120 (S) 4-Bromofluorobenzene 104 105 77.0-126 (S) 1,2-Dichloroethane-d4 108 105 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 32 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 32 of 47 QUALITY CONTROL SUMMARYWG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-02,03,04,05 Method Blank (MB) (MB) R3973029-3 09/13/23 05:51 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 33 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 33 of 47 QUALITY CONTROL SUMMARYWG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-02,03,04,05 Method Blank (MB) (MB) R3973029-3 09/13/23 05:51 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 27.6 10.0-120 (S) Phenol-d5 20.1 10.0-120 (S) Nitrobenzene-d5 55.6 10.0-127 (S) 2-Fluorobiphenyl 57.0 10.0-130 (S) 2,4,6-Tribromophenol 50.5 10.0-155 (S) p-Terphenyl-d14 72.9 10.0-128 Laboratory Control Sample (LCS) (LCS) R3973029-1 09/13/23 05:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0294 58.8 41.0-120 Acenaphthylene 0.0500 0.0292 58.4 43.0-120 Anthracene 0.0500 0.0307 61.4 45.0-120 Benzidine 0.100 0.00396 3.96 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0299 59.8 47.0-120 Benzo(b)fluoranthene 0.0500 0.0301 60.2 46.0-120 Benzo(k)fluoranthene 0.0500 0.0281 56.2 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0300 60.0 48.0-121 Benzo(a)pyrene 0.0500 0.0283 56.6 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0269 53.8 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0273 54.6 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 34 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 34 of 47 QUALITY CONTROL SUMMARYWG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-02,03,04,05 Laboratory Control Sample (LCS) (LCS) R3973029-1 09/13/23 05:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0250 50.0 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0317 63.4 45.0-120 2-Chloronaphthalene 0.0500 0.0277 55.4 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0272 54.4 44.0-120 Chrysene 0.0500 0.0293 58.6 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0295 59.0 47.0-120 1,2-Dichlorobenzene 0.0500 0.0206 41.2 20.0-120 1,3-Dichlorobenzene 0.0500 0.0199 39.8 17.0-120 1,4-Dichlorobenzene 0.0500 0.0210 42.0 18.0-120 3,3-Dichlorobenzidine 0.100 0.0503 50.3 44.0-120 2,4-Dinitrotoluene 0.0500 0.0305 61.0 49.0-124 2,6-Dinitrotoluene 0.0500 0.0310 62.0 46.0-120 Fluoranthene 0.0500 0.0289 57.8 51.0-120 Fluorene 0.0500 0.0281 56.2 47.0-120 Hexachlorobenzene 0.0500 0.0296 59.2 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0170 34.0 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0119 23.8 15.0-120 Hexachloroethane 0.0500 0.0189 37.8 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0265 53.0 49.0-122 Isophorone 0.0500 0.0265 53.0 36.0-120 Naphthalene 0.0500 0.0222 44.4 27.0-120 Nitrobenzene 0.0500 0.0246 49.2 27.0-120 n-Nitrosodimethylamine 0.0500 0.0176 35.2 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0310 62.0 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0291 58.2 31.0-120 Phenanthrene 0.0500 0.0307 61.4 46.0-120 Benzylbutyl phthalate 0.0500 0.0331 66.2 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0290 58.0 43.0-122 Di-n-butyl phthalate 0.0500 0.0332 66.4 49.0-121 Diethyl phthalate 0.0500 0.0298 59.6 48.0-122 Dimethyl phthalate 0.0500 0.0296 59.2 48.0-120 Di-n-octyl phthalate 0.0500 0.0284 56.8 42.0-125 Pyrene 0.0500 0.0317 63.4 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0181 36.2 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0205 41.0 40.0-120 2-Chlorophenol 0.0500 0.0177 35.4 25.0-120 2,4-Dichlorophenol 0.0500 0.0186 37.2 36.0-120 2,4-Dimethylphenol 0.0500 0.0225 45.0 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0343 68.6 38.0-138 2,4-Dinitrophenol 0.0500 0.0294 58.8 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 35 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 35 of 47 QUALITY CONTROL SUMMARYWG2129851 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-02,03,04,05 Laboratory Control Sample (LCS) (LCS) R3973029-1 09/13/23 05:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0255 51.0 31.0-120 4-Nitrophenol 0.0500 0.0118 23.6 10.0-120 Pentachlorophenol 0.0500 0.0225 45.0 23.0-120 Phenol 0.0500 0.0100 20.0 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0274 54.8 42.0-120 (S) 2-Fluorophenol 24.5 10.0-120 (S) Phenol-d5 19.2 10.0-120 (S) Nitrobenzene-d5 48.0 10.0-127 (S) 2-Fluorobiphenyl 58.1 10.0-130 (S) 2,4,6-Tribromophenol 61.0 10.0-155 (S) p-Terphenyl-d14 62.5 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 36 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 36 of 47 QUALITY CONTROL SUMMARYWG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-07 Method Blank (MB) (MB) R3973625-2 09/15/23 11:13 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene 0.000445 J 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 37 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 37 of 47 QUALITY CONTROL SUMMARYWG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-07 Method Blank (MB) (MB) R3973625-2 09/15/23 11:13 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 23.1 10.0-120 (S) Phenol-d5 14.8 10.0-120 (S) Nitrobenzene-d5 37.8 10.0-127 (S) 2-Fluorobiphenyl 43.5 10.0-130 (S) 2,4,6-Tribromophenol 41.5 10.0-155 (S) p-Terphenyl-d14 59.3 10.0-128 Laboratory Control Sample (LCS) (LCS) R3973625-1 09/15/23 10:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0277 55.4 41.0-120 Acenaphthylene 0.0500 0.0278 55.6 43.0-120 Anthracene 0.0500 0.0325 65.0 45.0-120 Benzidine 0.100 0.00731 7.31 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0366 73.2 47.0-120 Benzo(b)fluoranthene 0.0500 0.0395 79.0 46.0-120 Benzo(k)fluoranthene 0.0500 0.0384 76.8 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0402 80.4 48.0-121 Benzo(a)pyrene 0.0500 0.0343 68.6 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0249 49.8 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0237 47.4 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 38 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 38 of 47 QUALITY CONTROL SUMMARYWG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-07 Laboratory Control Sample (LCS) (LCS) R3973625-1 09/15/23 10:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0236 47.2 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0291 58.2 45.0-120 2-Chloronaphthalene 0.0500 0.0251 50.2 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0291 58.2 44.0-120 Chrysene 0.0500 0.0363 72.6 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0340 68.0 47.0-120 1,2-Dichlorobenzene 0.0500 0.0195 39.0 20.0-120 1,3-Dichlorobenzene 0.0500 0.0181 36.2 17.0-120 1,4-Dichlorobenzene 0.0500 0.0186 37.2 18.0-120 3,3-Dichlorobenzidine 0.100 0.0606 60.6 44.0-120 2,4-Dinitrotoluene 0.0500 0.0372 74.4 49.0-124 2,6-Dinitrotoluene 0.0500 0.0330 66.0 46.0-120 Fluoranthene 0.0500 0.0364 72.8 51.0-120 Fluorene 0.0500 0.0311 62.2 47.0-120 Hexachlorobenzene 0.0500 0.0297 59.4 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0144 28.8 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0123 24.6 15.0-120 Hexachloroethane 0.0500 0.0161 32.2 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0310 62.0 49.0-122 Isophorone 0.0500 0.0257 51.4 36.0-120 Naphthalene 0.0500 0.0210 42.0 27.0-120 Nitrobenzene 0.0500 0.0211 42.2 27.0-120 n-Nitrosodimethylamine 0.0500 0.0174 34.8 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0301 60.2 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0265 53.0 31.0-120 Phenanthrene 0.0500 0.0316 63.2 46.0-120 Benzylbutyl phthalate 0.0500 0.0385 77.0 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0394 78.8 43.0-122 Di-n-butyl phthalate 0.0500 0.0383 76.6 49.0-121 Diethyl phthalate 0.0500 0.0363 72.6 48.0-122 Dimethyl phthalate 0.0500 0.0334 66.8 48.0-120 Di-n-octyl phthalate 0.0500 0.0401 80.2 42.0-125 Pyrene 0.0500 0.0380 76.0 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0183 36.6 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0186 37.2 40.0-120 J4 2-Chlorophenol 0.0500 0.0129 25.8 25.0-120 2,4-Dichlorophenol 0.0500 0.0170 34.0 36.0-120 J4 2,4-Dimethylphenol 0.0500 0.0174 34.8 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0326 65.2 38.0-138 2,4-Dinitrophenol 0.0500 0.0250 50.0 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 39 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 39 of 47 QUALITY CONTROL SUMMARYWG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-07 Laboratory Control Sample (LCS) (LCS) R3973625-1 09/15/23 10:52 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0192 38.4 31.0-120 4-Nitrophenol 0.0500 0.0106 21.2 10.0-120 Pentachlorophenol 0.0500 0.0205 41.0 23.0-120 Phenol 0.0500 0.00759 15.2 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0240 48.0 42.0-120 (S) 2-Fluorophenol 19.2 10.0-120 (S) Phenol-d5 14.7 10.0-120 (S) Nitrobenzene-d5 41.4 10.0-127 (S) 2-Fluorobiphenyl 51.7 10.0-130 (S) 2,4,6-Tribromophenol 60.5 10.0-155 (S) p-Terphenyl-d14 74.1 10.0-128 L1653889-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653889-03 09/15/23 12:17 • (MS) R3973625-3 09/15/23 12:39 • (MSD) R3973625-4 09/15/23 13:00 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acenaphthene 0.0455 ND 0.0242 0.0257 53.2 56.5 1 28.0-120 6.01 25 Acenaphthylene 0.0455 ND 0.0248 0.0245 54.5 53.8 1 31.0-121 1.22 25 Anthracene 0.0455 ND 0.0272 0.0240 59.8 52.7 1 36.0-120 12.5 23 Benzidine 0.0910 ND ND ND 6.95 7.18 1 10.0-120 J6 J6 3.27 37 Benzo(a)anthracene 0.0455 ND 0.0251 0.0191 55.2 42.0 1 39.0-120 J3 27.1 23 Benzo(b)fluoranthene 0.0455 ND 0.0261 0.0189 57.4 41.5 1 37.0-120 J3 32.0 23 Benzo(k)fluoranthene 0.0455 ND 0.0251 0.0179 55.2 39.3 1 37.0-120 J3 33.5 26 Benzo(g,h,i)perylene 0.0455 ND 0.0253 0.0181 55.6 39.8 1 37.0-123 J3 33.2 25 Benzo(a)pyrene 0.0455 ND 0.0222 0.0161 48.8 35.4 1 37.0-120 J3 J6 31.9 24 Bis(2-chlorethoxy)methane 0.0455 ND 0.0197 0.0212 43.3 46.6 1 17.0-120 7.33 31 Bis(2-chloroethyl)ether 0.0455 ND 0.0192 0.0210 42.2 46.2 1 14.0-120 8.96 33 2,2-Oxybis(1-Chloropropane)0.0455 ND 0.0210 0.0219 46.2 48.1 1 18.0-120 4.20 34 4-Bromophenyl-phenylether 0.0455 ND 0.0222 0.0201 48.8 44.2 1 37.0-120 9.93 24 2-Chloronaphthalene 0.0455 ND 0.0220 0.0222 48.4 48.8 1 29.0-120 0.905 28 4-Chlorophenyl-phenylether 0.0455 ND 0.0244 0.0220 53.6 48.4 1 36.0-120 10.3 23 Chrysene 0.0455 ND 0.0255 0.0188 56.0 41.3 1 38.0-120 J3 30.2 23 Dibenz(a,h)anthracene 0.0455 ND 0.0215 0.0155 47.3 34.1 1 36.0-121 J3 J6 32.4 24 1,2-Dichlorobenzene 0.0455 ND 0.0193 0.0204 42.4 44.8 1 18.0-120 5.54 40 1,3-Dichlorobenzene 0.0455 ND 0.0187 0.0196 41.1 43.1 1 15.0-120 4.70 40 1,4-Dichlorobenzene 0.0455 ND 0.0190 0.0202 41.8 44.4 1 17.0-120 6.12 40 3,3-Dichlorobenzidine 0.0910 ND 0.0496 0.0492 54.5 54.1 1 10.0-134 0.810 30 2,4-Dinitrotoluene 0.0455 ND 0.0347 0.0299 76.3 65.7 1 39.0-125 14.9 25 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 40 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 40 of 47 QUALITY CONTROL SUMMARYWG2130427 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1654128-07 L1653889-03 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653889-03 09/15/23 12:17 • (MS) R3973625-3 09/15/23 12:39 • (MSD) R3973625-4 09/15/23 13:00 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 2,6-Dinitrotoluene 0.0455 ND 0.0301 0.0268 66.2 58.9 1 36.0-120 11.6 27 Fluoranthene 0.0455 ND 0.0304 0.0245 66.8 53.8 1 41.0-121 21.5 22 Fluorene 0.0455 ND 0.0260 0.0253 57.1 55.6 1 37.0-120 2.73 24 Hexachlorobenzene 0.0455 ND 0.0201 0.0164 44.2 36.0 1 35.0-122 20.3 24 Hexachloro-1,3-butadiene 0.0455 ND 0.0138 0.0142 30.3 31.2 1 12.0-120 2.86 34 Hexachlorocyclopentadiene 0.0455 ND ND 0.0101 21.8 22.2 1 10.0-120 1.70 33 Hexachloroethane 0.0455 ND 0.0168 0.0179 36.9 39.3 1 10.0-120 6.34 40 Indeno(1,2,3-cd)pyrene 0.0455 ND 0.0198 0.0141 43.5 31.0 1 38.0-125 J3 J6 33.6 24 Isophorone 0.0455 ND 0.0211 0.0217 46.4 47.7 1 21.0-120 2.80 27 Naphthalene 0.0455 ND 0.0207 0.0443 44.4 96.3 1 10.0-120 J3 72.6 31 Nitrobenzene 0.0455 ND 0.0187 0.0199 41.1 43.7 1 12.0-120 6.22 30 n-Nitrosodimethylamine 0.0455 ND 0.0139 0.0145 30.5 31.9 1 10.0-120 4.23 40 n-Nitrosodiphenylamine 0.0455 ND 0.0259 0.0245 56.9 53.8 1 37.0-120 5.56 24 n-Nitrosodi-n-propylamine 0.0455 ND 0.0215 0.0218 47.3 47.9 1 16.0-120 1.39 30 Phenanthrene 0.0455 ND 0.0271 0.0249 59.6 54.7 1 33.0-120 8.46 22 Benzylbutyl phthalate 0.0455 ND 0.0305 0.0262 67.0 57.6 1 34.0-126 15.2 24 Bis(2-ethylhexyl)phthalate 0.0455 ND 0.0241 0.0174 53.0 38.2 1 33.0-126 J3 32.3 25 Di-n-butyl phthalate 0.0455 ND 0.0318 0.0275 69.9 60.4 1 35.0-128 14.5 23 Diethyl phthalate 0.0455 ND 0.0285 0.0226 62.6 49.7 1 39.0-125 23.1 24 Dimethyl phthalate 0.0455 ND 0.0197 0.0167 43.3 36.7 1 37.0-120 J6 16.5 24 Di-n-octyl phthalate 0.0455 ND 0.0244 0.0179 53.6 39.3 1 25.0-135 J3 30.7 26 Pyrene 0.0455 ND 0.0298 0.0241 65.5 53.0 1 39.0-120 21.2 22 1,2,4-Trichlorobenzene 0.0455 ND 0.0176 0.0191 38.7 42.0 1 15.0-120 8.17 31 4-Chloro-3-methylphenol 0.0455 ND 0.0101 0.0103 22.2 22.6 1 26.0-120 J6 J6 1.96 27 2-Chlorophenol 0.0455 ND ND ND 15.9 17.5 1 18.0-120 J6 J6 9.36 34 2,4-Dichlorophenol 0.0455 ND ND ND 19.3 20.3 1 19.0-120 4.99 27 2,4-Dimethylphenol 0.0455 ND ND 0.0102 21.4 22.4 1 15.0-120 4.72 28 4,6-Dinitro-2-methylphenol 0.0455 ND 0.0148 0.0131 32.5 28.8 1 10.0-144 12.2 39 2,4-Dinitrophenol 0.0455 ND 0.0125 0.0105 27.5 23.1 1 10.0-120 17.4 40 2-Nitrophenol 0.0455 ND ND 0.0105 21.0 23.1 1 20.0-120 9.27 30 4-Nitrophenol 0.0455 ND ND ND 16.6 14.7 1 10.0-120 12.5 40 Pentachlorophenol 0.0455 ND 0.0126 ND 27.7 21.8 1 10.0-128 23.9 37 Phenol 0.0455 ND ND ND 13.1 13.1 1 10.0-120 0.504 40 2,4,6-Trichlorophenol 0.0455 ND 0.0106 0.0105 23.3 23.1 1 26.0-120 J6 J6 0.948 31 (S) 2-Fluorophenol 12.6 14.7 10.0-120 (S) Phenol-d5 10.3 11.2 10.0-120 (S) Nitrobenzene-d5 39.8 42.9 10.0-127 (S) 2-Fluorobiphenyl 46.7 46.5 10.0-130 (S) 2,4,6-Tribromophenol 39.0 35.7 10.0-155 (S) p-Terphenyl-d14 48.2 37.4 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 41 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 41 of 47 QUALITY CONTROL SUMMARYWG2129848 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1654128-01,02,03,04 Method Blank (MB) (MB) R3972349-2 09/12/23 17:15 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.000106 J 0.0000447 0.000400 (S) Nitrobenzene-d5 49.5 10.0-120 Laboratory Control Sample (LCS) (LCS) R3972349-1 09/12/23 16:56 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 1,4-Dioxane 0.0500 0.0651 130 73.0-146 (S) Nitrobenzene-d5 69.1 10.0-120 L1653909-08 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653909-08 09/12/23 20:08 • (MS) R3972349-3 09/12/23 20:27 • (MSD) R3972349-4 09/12/23 20:46 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0476 ND 0.0608 0.0614 128 129 1 38.0-160 0.982 21 (S) Nitrobenzene-d5 56.6 49.8 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 42 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 42 of 47 QUALITY CONTROL SUMMARYWG2130432 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1654128-05,06,07 Method Blank (MB) (MB) R3973198-3 09/14/23 00:39 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.00277 0.0000447 0.000400 (S) Nitrobenzene-d5 59.7 10.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3973198-2 09/14/23 00:20 • (LCSD) R3973198-1 09/14/23 00:01 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0552 0.0567 110 113 73.0-146 2.68 20 (S) Nitrobenzene-d5 69.6 58.6 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 43 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 43 of 47 QUALITY CONTROL SUMMARYWG2132810 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1654128-06,07 Method Blank (MB) (MB) R3974366-3 09/16/23 00:53 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.00628 0.0000447 0.000400 (S) Nitrobenzene-d5 49.9 10.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3974366-1 09/16/23 00:15 • (LCSD) R3974366-2 09/16/23 00:34 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0526 0.0494 105 98.8 73.0-146 6.27 20 (S) Nitrobenzene-d5 51.7 58.1 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 44 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 44 of 47 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description B The same analyte is found in the associated blank. J The identification of the analyte is acceptable; the reported value is an estimate. J3 The associated batch QC was outside the established quality control range for precision. J4 The associated batch QC was outside the established quality control range for accuracy. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. Q Sample was prepared and/or analyzed past holding time as defined in the method. Concentrations should be considered minimum values. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 45 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 45 of 47 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/18/23 23:25 46 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT 117-0551036 L1654128 09/19/23 16:14 46 of 47 ANALYTICAL REPORT September 19, 2023 Tetra Tech Inc. - UT Sample Delivery Group:L1653392 Samples Received:09/07/2023 Project Number: Description:Chromalox Report To:Michael Ozier 4750 West 2100 South Suite 400 Salt Lake City, UT 84120 Entire Report Reviewed By: September 19, 2023 [Preliminary Report] Chris Ward Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 1 of 82 September 19, 2023 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 1 of 82 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 6 Sr: Sample Results 7 MW-1 L1653392-01 7 GMW-5 L1653392-02 10 DUP GMW-5 L1653392-03 13 GMW-4 L1653392-04 16 MW-5 L1653392-05 19 MW-7 L1653392-06 22 MW-12D L1653392-07 25 MW-12S L1653392-08 28 MW-17 L1653392-09 31 MW-18 L1653392-10 34 MW-13D L1653392-11 37 MW-13S L1653392-12 40 MW-8 L1653392-13 43 GMW-8 L1653392-14 45 MW-9 L1653392-15 47 Qc: Quality Control Summary 49 Mercury by Method 7470A 49 Metals (ICP) by Method 6010B 51 Volatile Organic Compounds (GC/MS) by Method 8260B 52 Semi Volatile Organic Compounds (GC/MS) by Method 8270C 65 Semi Volatile Organic Compounds (GC/MS) by Method 8270E 75 Gl: Glossary of Terms 78 Al: Accreditations & Locations 79 Sc: Sample Chain of Custody 80 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 2 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 2 of 82 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-1 L1653392-01 GW Michael Ozier 09/06/23 09:16 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129689 1 09/10/23 18:14 09/11/23 10:54 NDL Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:33 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 05:36 09/09/23 05:36 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 04:33 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129847 1 09/11/23 20:52 09/12/23 04:16 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-5 L1653392-02 GW Michael Ozier 09/06/23 10:15 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:20 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:36 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 05:58 09/09/23 05:58 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 04:54 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2129847 1 09/11/23 20:52 09/12/23 04:54 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time DUP GMW-5 L1653392-03 GW Michael Ozier 09/06/23 00:00 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:22 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:39 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 06:20 09/09/23 06:20 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 05:15 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130432 1 09/13/23 16:19 09/14/23 02:15 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-4 L1653392-04 GW Michael Ozier 09/06/23 12:02 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:24 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:41 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 06:41 09/09/23 06:41 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 05:37 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130432 1 09/13/23 16:19 09/14/23 02:35 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-5 L1653392-05 GW Michael Ozier 09/06/23 13:14 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:26 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:44 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 07:03 09/09/23 07:03 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 05:58 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 12:37 AGW Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 3 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 3 of 82 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-7 L1653392-06 GW Michael Ozier 09/06/23 15:12 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:32 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:06 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 07:24 09/09/23 07:24 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 06:20 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 09:37 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-12D L1653392-07 GW Michael Ozier 09/06/23 09:30 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:39 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:47 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 07:46 09/09/23 07:46 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1.05 09/11/23 06:38 09/12/23 06:41 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1.05 09/13/23 16:20 09/14/23 15:30 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-12S L1653392-08 GW Michael Ozier 09/06/23 10:20 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:41 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:50 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129193 1 09/09/23 08:07 09/09/23 08:07 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2128627 1 09/11/23 06:38 09/12/23 07:02 DSH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1.02 09/13/23 16:20 09/14/23 15:49 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-17 L1653392-09 GW Michael Ozier 09/06/23 11:15 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:44 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:53 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 10:39 09/09/23 10:39 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129511 1 09/13/23 08:45 09/14/23 00:35 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 12:56 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-18 L1653392-10 GW Michael Ozier 09/06/23 12:10 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:46 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:56 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 10:59 09/09/23 10:59 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129511 1 09/13/23 08:45 09/13/23 18:32 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 13:16 AGW Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 4 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 4 of 82 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-13D L1653392-11 GW Michael Ozier 09/06/23 14:35 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:48 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 20:58 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 11:20 09/09/23 11:20 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129511 1 09/13/23 08:45 09/14/23 00:57 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1.04 09/13/23 16:20 09/14/23 13:35 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-13S L1653392-12 GW Michael Ozier 09/06/23 15:35 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:51 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 21:07 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 11:40 09/09/23 11:40 JCP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2131061 500 09/13/23 06:39 09/13/23 06:39 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270C WG2129511 1 09/13/23 08:45 09/14/23 01:39 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1.09 09/13/23 16:20 09/14/23 16:09 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-8 L1653392-13 GW Michael Ozier 09/06/23 11:12 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:53 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 21:10 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 12:01 09/09/23 12:01 JCP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2131061 1 09/13/23 02:01 09/13/23 02:01 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 13:54 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time GMW-8 L1653392-14 GW Michael Ozier 09/06/23 14:12 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:55 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 21:13 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 12:21 09/09/23 12:21 JCP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2131061 1 09/13/23 02:22 09/13/23 02:22 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1 09/13/23 16:20 09/14/23 14:13 AGW Mt. Juliet, TN Collected by Collected date/time Received date/time MW-9 L1653392-15 GW Michael Ozier 09/06/23 13:45 09/07/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Mercury by Method 7470A WG2129690 1 09/12/23 16:02 09/13/23 13:58 LAS Mt. Juliet, TN Metals (ICP) by Method 6010B WG2128429 1 09/08/23 12:04 09/08/23 21:15 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2129196 1 09/09/23 12:42 09/09/23 12:42 JCP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B WG2131061 1 09/13/23 02:44 09/13/23 02:44 JCP Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2130709 1.06 09/13/23 16:20 09/14/23 15:11 AGW Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 5 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 5 of 82 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Chris Ward Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 6 of 82 Chris Ward Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 6 of 82 SAMPLE RESULTS - 01 L1653392 MW-1 Collected date/time: 09/06/23 09:16 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/11/2023 10:54 WG2129689 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0131 0.0100 1 09/08/2023 20:33 WG2128429 Barium,Dissolved 0.300 0.00500 1 09/08/2023 20:33 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:33 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:33 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:33 WG2128429 Lead,Dissolved 0.00785 0.00600 1 09/08/2023 20:33 WG2128429 Manganese,Dissolved 0.0388 0.0100 1 09/08/2023 20:33 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:33 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:33 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 05:36 WG2129193 Acrolein ND 0.0500 1 09/09/2023 05:36 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 05:36 WG2129193 Benzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 05:36 WG2129193 Bromoform ND 0.00100 1 09/09/2023 05:36 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 05:36 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 05:36 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 05:36 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 05:36 WG2129193 Chloroform ND 0.00500 1 09/09/2023 05:36 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 05:36 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 05:36 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 05:36 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 05:36 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 05:36 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 05:36 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 05:36 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 05:36 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 05:36 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 05:36 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 05:36 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 7 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 7 of 82 SAMPLE RESULTS - 01 L1653392 MW-1 Collected date/time: 09/06/23 09:16 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 05:36 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 05:36 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 05:36 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 05:36 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 05:36 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 05:36 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 05:36 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 05:36 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Styrene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 05:36 WG2129193 Toluene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 05:36 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 05:36 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 05:36 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 05:36 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 05:36 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 05:36 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 05:36 WG2129193 (S) Toluene-d8 114 80.0-120 09/09/2023 05:36 WG2129193 (S) 4-Bromofluorobenzene 105 77.0-126 09/09/2023 05:36 WG2129193 (S) 1,2-Dichloroethane-d4 105 70.0-130 09/09/2023 05:36 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 04:33 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 04:33 WG2128627 Anthracene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 04:33 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 04:33 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 04:33 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 04:33 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 04:33 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 04:33 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 04:33 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 04:33 WG2128627 Chrysene ND 0.00100 1 09/12/2023 04:33 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 04:33 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 04:33 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 04:33 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 04:33 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 8 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 8 of 82 SAMPLE RESULTS - 01 L1653392 MW-1 Collected date/time: 09/06/23 09:16 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 04:33 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 04:33 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 04:33 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 04:33 WG2128627 Fluorene ND 0.00100 1 09/12/2023 04:33 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 04:33 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 04:33 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 04:33 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 04:33 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 04:33 WG2128627 Isophorone ND 0.0100 1 09/12/2023 04:33 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 04:33 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 04:33 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 04:33 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 04:33 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 04:33 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 04:33 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 04:33 WG2128627 Pyrene ND 0.00100 1 09/12/2023 04:33 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 04:33 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 04:33 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 Phenol ND 0.0100 1 09/12/2023 04:33 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 04:33 WG2128627 (S) 2-Fluorophenol 21.6 10.0-120 09/12/2023 04:33 WG2128627 (S) Phenol-d5 15.6 10.0-120 09/12/2023 04:33 WG2128627 (S) Nitrobenzene-d5 50.2 10.0-127 09/12/2023 04:33 WG2128627 (S) 2-Fluorobiphenyl 46.2 10.0-130 09/12/2023 04:33 WG2128627 (S) 2,4,6-Tribromophenol 33.0 10.0-155 09/12/2023 04:33 WG2128627 (S) p-Terphenyl-d14 42.7 10.0-128 09/12/2023 04:33 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.000633 J3 J4 0.000400 1 09/12/2023 04:16 WG2129847 (S) Nitrobenzene-d5 31.4 10.0-120 09/12/2023 04:16 WG2129847 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 9 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 9 of 82 SAMPLE RESULTS - 02 L1653392 GMW-5 Collected date/time: 09/06/23 10:15 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:20 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0371 0.0100 1 09/08/2023 20:36 WG2128429 Barium,Dissolved 0.276 0.00500 1 09/08/2023 20:36 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:36 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:36 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:36 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 20:36 WG2128429 Manganese,Dissolved 0.533 0.0100 1 09/08/2023 20:36 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:36 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:36 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 05:58 WG2129193 Acrolein ND 0.0500 1 09/09/2023 05:58 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 05:58 WG2129193 Benzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 05:58 WG2129193 Bromoform ND 0.00100 1 09/09/2023 05:58 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 05:58 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 05:58 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 05:58 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 05:58 WG2129193 Chloroform ND 0.00500 1 09/09/2023 05:58 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 05:58 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 05:58 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 05:58 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 05:58 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 05:58 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 05:58 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 05:58 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 05:58 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 05:58 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 05:58 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 05:58 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 10 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 10 of 82 SAMPLE RESULTS - 02 L1653392 GMW-5 Collected date/time: 09/06/23 10:15 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 05:58 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 05:58 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 05:58 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 05:58 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 05:58 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 05:58 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 05:58 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 05:58 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Styrene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 05:58 WG2129193 Toluene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 05:58 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 05:58 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 05:58 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 05:58 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 05:58 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 05:58 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 05:58 WG2129193 (S) Toluene-d8 116 80.0-120 09/09/2023 05:58 WG2129193 (S) 4-Bromofluorobenzene 99.4 77.0-126 09/09/2023 05:58 WG2129193 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/09/2023 05:58 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 04:54 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 04:54 WG2128627 Anthracene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 04:54 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 04:54 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 04:54 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 04:54 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 04:54 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 04:54 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 04:54 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 04:54 WG2128627 Chrysene ND 0.00100 1 09/12/2023 04:54 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 04:54 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 04:54 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 04:54 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 04:54 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 11 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 11 of 82 SAMPLE RESULTS - 02 L1653392 GMW-5 Collected date/time: 09/06/23 10:15 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 04:54 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 04:54 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 04:54 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 04:54 WG2128627 Fluorene ND 0.00100 1 09/12/2023 04:54 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 04:54 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 04:54 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 04:54 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 04:54 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 04:54 WG2128627 Isophorone ND 0.0100 1 09/12/2023 04:54 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 04:54 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 04:54 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 04:54 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 04:54 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 04:54 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 04:54 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 04:54 WG2128627 Pyrene ND 0.00100 1 09/12/2023 04:54 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 04:54 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 04:54 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 Phenol ND 0.0100 1 09/12/2023 04:54 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 04:54 WG2128627 (S) 2-Fluorophenol 21.2 10.0-120 09/12/2023 04:54 WG2128627 (S) Phenol-d5 14.8 10.0-120 09/12/2023 04:54 WG2128627 (S) Nitrobenzene-d5 57.0 10.0-127 09/12/2023 04:54 WG2128627 (S) 2-Fluorobiphenyl 55.4 10.0-130 09/12/2023 04:54 WG2128627 (S) 2,4,6-Tribromophenol 39.5 10.0-155 09/12/2023 04:54 WG2128627 (S) p-Terphenyl-d14 55.3 10.0-128 09/12/2023 04:54 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00301 J3 J4 0.000400 1 09/12/2023 04:54 WG2129847 (S) Nitrobenzene-d5 46.1 10.0-120 09/12/2023 04:54 WG2129847 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 12 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 12 of 82 SAMPLE RESULTS - 03 L1653392 DUP GMW-5 Collected date/time: 09/06/23 00:00 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:22 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.0362 0.0100 1 09/08/2023 20:39 WG2128429 Barium,Dissolved 0.276 0.00500 1 09/08/2023 20:39 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:39 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:39 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:39 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 20:39 WG2128429 Manganese,Dissolved 0.535 0.0100 1 09/08/2023 20:39 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:39 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:39 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 06:20 WG2129193 Acrolein ND 0.0500 1 09/09/2023 06:20 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 06:20 WG2129193 Benzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 06:20 WG2129193 Bromoform ND 0.00100 1 09/09/2023 06:20 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 06:20 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 06:20 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 06:20 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 06:20 WG2129193 Chloroform ND 0.00500 1 09/09/2023 06:20 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 06:20 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 06:20 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 06:20 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 06:20 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 06:20 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 06:20 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 06:20 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 06:20 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 06:20 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 06:20 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 06:20 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 13 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 13 of 82 SAMPLE RESULTS - 03 L1653392 DUP GMW-5 Collected date/time: 09/06/23 00:00 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 06:20 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 06:20 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 06:20 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 06:20 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 06:20 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 06:20 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 06:20 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 06:20 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Styrene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 06:20 WG2129193 Toluene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 06:20 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 06:20 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 06:20 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 06:20 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 06:20 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 06:20 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 06:20 WG2129193 (S) Toluene-d8 118 80.0-120 09/09/2023 06:20 WG2129193 (S) 4-Bromofluorobenzene 98.8 77.0-126 09/09/2023 06:20 WG2129193 (S) 1,2-Dichloroethane-d4 109 70.0-130 09/09/2023 06:20 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 05:15 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 05:15 WG2128627 Anthracene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 05:15 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 05:15 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 05:15 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 05:15 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 05:15 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 05:15 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 05:15 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 05:15 WG2128627 Chrysene ND 0.00100 1 09/12/2023 05:15 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 05:15 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 05:15 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 05:15 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 05:15 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 14 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 14 of 82 SAMPLE RESULTS - 03 L1653392 DUP GMW-5 Collected date/time: 09/06/23 00:00 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 05:15 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 05:15 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 05:15 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 05:15 WG2128627 Fluorene ND 0.00100 1 09/12/2023 05:15 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 05:15 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 05:15 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 05:15 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 05:15 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 05:15 WG2128627 Isophorone ND 0.0100 1 09/12/2023 05:15 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 05:15 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 05:15 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 05:15 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 05:15 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 05:15 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 05:15 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 05:15 WG2128627 Pyrene ND 0.00100 1 09/12/2023 05:15 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 05:15 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 05:15 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 Phenol ND 0.0100 1 09/12/2023 05:15 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 05:15 WG2128627 (S) 2-Fluorophenol 20.6 10.0-120 09/12/2023 05:15 WG2128627 (S) Phenol-d5 15.0 10.0-120 09/12/2023 05:15 WG2128627 (S) Nitrobenzene-d5 55.9 10.0-127 09/12/2023 05:15 WG2128627 (S) 2-Fluorobiphenyl 50.0 10.0-130 09/12/2023 05:15 WG2128627 (S) 2,4,6-Tribromophenol 27.4 10.0-155 09/12/2023 05:15 WG2128627 (S) p-Terphenyl-d14 47.6 10.0-128 09/12/2023 05:15 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00695 B 0.000400 1 09/14/2023 02:15 WG2130432 (S) Nitrobenzene-d5 43.6 10.0-120 09/14/2023 02:15 WG2130432 Sample Narrative: L1653392-03 WG2130432: Duplicate Analysis performed due to QC failure. Results confirm, reporting most compliant data. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 15 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 15 of 82 SAMPLE RESULTS - 04 L1653392 GMW-4 Collected date/time: 09/06/23 12:02 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:24 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 20:41 WG2128429 Barium,Dissolved 0.133 0.00500 1 09/08/2023 20:41 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:41 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:41 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:41 WG2128429 Lead,Dissolved 0.00605 0.00600 1 09/08/2023 20:41 WG2128429 Manganese,Dissolved 0.0243 0.0100 1 09/08/2023 20:41 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:41 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:41 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 06:41 WG2129193 Acrolein ND 0.0500 1 09/09/2023 06:41 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 06:41 WG2129193 Benzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 06:41 WG2129193 Bromoform ND 0.00100 1 09/09/2023 06:41 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 06:41 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 06:41 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 06:41 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 06:41 WG2129193 Chloroform ND 0.00500 1 09/09/2023 06:41 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 06:41 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 06:41 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 06:41 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 06:41 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 06:41 WG2129193 1,1-Dichloroethane 0.00484 0.00100 1 09/09/2023 06:41 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1-Dichloroethene 0.130 0.00100 1 09/09/2023 06:41 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 06:41 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 06:41 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 06:41 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 06:41 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 06:41 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 16 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 16 of 82 SAMPLE RESULTS - 04 L1653392 GMW-4 Collected date/time: 09/06/23 12:02 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 06:41 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 06:41 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 06:41 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 06:41 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 06:41 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 06:41 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 06:41 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 06:41 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Styrene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 06:41 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 06:41 WG2129193 Toluene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,1,1-Trichloroethane 0.0233 0.00100 1 09/09/2023 06:41 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 06:41 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 06:41 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 06:41 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 06:41 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 06:41 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 06:41 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 06:41 WG2129193 (S) Toluene-d8 112 80.0-120 09/09/2023 06:41 WG2129193 (S) 4-Bromofluorobenzene 101 77.0-126 09/09/2023 06:41 WG2129193 (S) 1,2-Dichloroethane-d4 108 70.0-130 09/09/2023 06:41 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 05:37 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 05:37 WG2128627 Anthracene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 05:37 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 05:37 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 05:37 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 05:37 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 05:37 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 05:37 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 05:37 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 05:37 WG2128627 Chrysene ND 0.00100 1 09/12/2023 05:37 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 05:37 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 05:37 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 05:37 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 05:37 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 17 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 17 of 82 SAMPLE RESULTS - 04 L1653392 GMW-4 Collected date/time: 09/06/23 12:02 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 05:37 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 05:37 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 05:37 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 05:37 WG2128627 Fluorene ND 0.00100 1 09/12/2023 05:37 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 05:37 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 05:37 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 05:37 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 05:37 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 05:37 WG2128627 Isophorone ND 0.0100 1 09/12/2023 05:37 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 05:37 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 05:37 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 05:37 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 05:37 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 05:37 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 05:37 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 05:37 WG2128627 Pyrene ND 0.00100 1 09/12/2023 05:37 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 05:37 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 05:37 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 Phenol ND 0.0100 1 09/12/2023 05:37 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 05:37 WG2128627 (S) 2-Fluorophenol 20.5 10.0-120 09/12/2023 05:37 WG2128627 (S) Phenol-d5 15.2 10.0-120 09/12/2023 05:37 WG2128627 (S) Nitrobenzene-d5 57.0 10.0-127 09/12/2023 05:37 WG2128627 (S) 2-Fluorobiphenyl 52.3 10.0-130 09/12/2023 05:37 WG2128627 (S) 2,4,6-Tribromophenol 24.9 10.0-155 09/12/2023 05:37 WG2128627 (S) p-Terphenyl-d14 44.9 10.0-128 09/12/2023 05:37 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0763 0.000400 1 09/14/2023 02:35 WG2130432 (S) Nitrobenzene-d5 43.4 10.0-120 09/14/2023 02:35 WG2130432 Sample Narrative: L1653392-04 WG2130432: Duplicate Analysis performed due to QC failure. Results confirm, reporting most compliant data. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 18 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 18 of 82 SAMPLE RESULTS - 05 L1653392 MW-5 Collected date/time: 09/06/23 13:14 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:26 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.233 0.0100 1 09/08/2023 20:44 WG2128429 Barium,Dissolved 0.646 0.00500 1 09/08/2023 20:44 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:44 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:44 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:44 WG2128429 Lead,Dissolved 0.00716 0.00600 1 09/08/2023 20:44 WG2128429 Manganese,Dissolved 0.0724 0.0100 1 09/08/2023 20:44 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:44 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:44 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 07:03 WG2129193 Acrolein ND 0.0500 1 09/09/2023 07:03 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 07:03 WG2129193 Benzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 07:03 WG2129193 Bromoform ND 0.00100 1 09/09/2023 07:03 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 07:03 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 07:03 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 07:03 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 07:03 WG2129193 Chloroform ND 0.00500 1 09/09/2023 07:03 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 07:03 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 07:03 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 07:03 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 07:03 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 07:03 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 07:03 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:03 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 07:03 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 07:03 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 07:03 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 07:03 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 19 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 19 of 82 SAMPLE RESULTS - 05 L1653392 MW-5 Collected date/time: 09/06/23 13:14 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 07:03 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 07:03 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 07:03 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 07:03 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 07:03 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 07:03 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 07:03 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 07:03 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Styrene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 07:03 WG2129193 Toluene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 07:03 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 07:03 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 07:03 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 07:03 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 07:03 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 07:03 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 07:03 WG2129193 (S) Toluene-d8 115 80.0-120 09/09/2023 07:03 WG2129193 (S) 4-Bromofluorobenzene 101 77.0-126 09/09/2023 07:03 WG2129193 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/09/2023 07:03 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 05:58 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 05:58 WG2128627 Anthracene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 05:58 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 05:58 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 05:58 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 05:58 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 05:58 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 05:58 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 05:58 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 05:58 WG2128627 Chrysene ND 0.00100 1 09/12/2023 05:58 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 05:58 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 05:58 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 05:58 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 05:58 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 20 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 20 of 82 SAMPLE RESULTS - 05 L1653392 MW-5 Collected date/time: 09/06/23 13:14 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 05:58 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 05:58 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 05:58 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 05:58 WG2128627 Fluorene ND 0.00100 1 09/12/2023 05:58 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 05:58 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 05:58 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 05:58 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 05:58 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 05:58 WG2128627 Isophorone ND 0.0100 1 09/12/2023 05:58 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 05:58 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 05:58 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 05:58 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 05:58 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 05:58 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 05:58 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 05:58 WG2128627 Pyrene ND 0.00100 1 09/12/2023 05:58 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 05:58 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 05:58 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 Phenol ND 0.0100 1 09/12/2023 05:58 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 05:58 WG2128627 (S) 2-Fluorophenol 27.9 10.0-120 09/12/2023 05:58 WG2128627 (S) Phenol-d5 19.7 10.0-120 09/12/2023 05:58 WG2128627 (S) Nitrobenzene-d5 61.8 10.0-127 09/12/2023 05:58 WG2128627 (S) 2-Fluorobiphenyl 51.6 10.0-130 09/12/2023 05:58 WG2128627 (S) 2,4,6-Tribromophenol 34.6 10.0-155 09/12/2023 05:58 WG2128627 (S) p-Terphenyl-d14 46.4 10.0-128 09/12/2023 05:58 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00916 0.000400 1 09/14/2023 12:37 WG2130709 (S) Nitrobenzene-d5 33.3 10.0-120 09/14/2023 12:37 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 21 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 21 of 82 SAMPLE RESULTS - 06 L1653392 MW-7 Collected date/time: 09/06/23 15:12 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:32 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.301 0.0100 1 09/08/2023 20:06 WG2128429 Barium,Dissolved 0.0704 0.00500 1 09/08/2023 20:06 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:06 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:06 WG2128429 Iron,Dissolved 0.182 B 0.100 1 09/08/2023 20:06 WG2128429 Lead,Dissolved 0.00773 0.00600 1 09/08/2023 20:06 WG2128429 Manganese,Dissolved ND 0.0100 1 09/08/2023 20:06 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:06 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:06 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 07:24 WG2129193 Acrolein ND 0.0500 1 09/09/2023 07:24 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 07:24 WG2129193 Benzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 07:24 WG2129193 Bromoform ND 0.00100 1 09/09/2023 07:24 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 07:24 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 07:24 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 07:24 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 07:24 WG2129193 Chloroform ND 0.00500 1 09/09/2023 07:24 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 07:24 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 07:24 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 07:24 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 07:24 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 07:24 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 07:24 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:24 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 07:24 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 07:24 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 07:24 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 07:24 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 22 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 22 of 82 SAMPLE RESULTS - 06 L1653392 MW-7 Collected date/time: 09/06/23 15:12 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 07:24 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 07:24 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 07:24 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 07:24 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 07:24 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 07:24 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 07:24 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 07:24 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Styrene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 07:24 WG2129193 Toluene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 07:24 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 07:24 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 07:24 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 07:24 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 07:24 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 07:24 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 07:24 WG2129193 (S) Toluene-d8 118 80.0-120 09/09/2023 07:24 WG2129193 (S) 4-Bromofluorobenzene 105 77.0-126 09/09/2023 07:24 WG2129193 (S) 1,2-Dichloroethane-d4 108 70.0-130 09/09/2023 07:24 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 06:20 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 06:20 WG2128627 Anthracene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 06:20 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 06:20 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 06:20 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 06:20 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 06:20 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 06:20 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 06:20 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 06:20 WG2128627 Chrysene ND 0.00100 1 09/12/2023 06:20 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 06:20 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 06:20 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 06:20 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 06:20 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 23 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 23 of 82 SAMPLE RESULTS - 06 L1653392 MW-7 Collected date/time: 09/06/23 15:12 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 06:20 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 06:20 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 06:20 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 06:20 WG2128627 Fluorene ND 0.00100 1 09/12/2023 06:20 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 06:20 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 06:20 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 06:20 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 06:20 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 06:20 WG2128627 Isophorone ND 0.0100 1 09/12/2023 06:20 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 06:20 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 06:20 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 06:20 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 06:20 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 06:20 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 06:20 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 06:20 WG2128627 Pyrene ND 0.00100 1 09/12/2023 06:20 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 06:20 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 06:20 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 Phenol ND 0.0100 1 09/12/2023 06:20 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 06:20 WG2128627 (S) 2-Fluorophenol 28.7 10.0-120 09/12/2023 06:20 WG2128627 (S) Phenol-d5 19.5 10.0-120 09/12/2023 06:20 WG2128627 (S) Nitrobenzene-d5 69.6 10.0-127 09/12/2023 06:20 WG2128627 (S) 2-Fluorobiphenyl 62.1 10.0-130 09/12/2023 06:20 WG2128627 (S) 2,4,6-Tribromophenol 36.1 10.0-155 09/12/2023 06:20 WG2128627 (S) p-Terphenyl-d14 54.7 10.0-128 09/12/2023 06:20 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000400 1 09/14/2023 09:37 WG2130709 (S) Nitrobenzene-d5 40.3 10.0-120 09/14/2023 09:37 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 24 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 24 of 82 SAMPLE RESULTS - 07 L1653392 MW-12D Collected date/time: 09/06/23 09:30 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:39 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.192 0.0100 1 09/08/2023 20:47 WG2128429 Barium,Dissolved 0.134 0.00500 1 09/08/2023 20:47 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:47 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:47 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:47 WG2128429 Lead,Dissolved 0.00772 0.00600 1 09/08/2023 20:47 WG2128429 Manganese,Dissolved 0.0390 0.0100 1 09/08/2023 20:47 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:47 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:47 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 07:46 WG2129193 Acrolein ND 0.0500 1 09/09/2023 07:46 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 07:46 WG2129193 Benzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 07:46 WG2129193 Bromoform ND 0.00100 1 09/09/2023 07:46 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 07:46 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 07:46 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 07:46 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 07:46 WG2129193 Chloroform ND 0.00500 1 09/09/2023 07:46 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 07:46 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 07:46 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 07:46 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 07:46 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 07:46 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1-Dichloroethene ND 0.00100 1 09/09/2023 07:46 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:46 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 07:46 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 07:46 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 07:46 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 07:46 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 25 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 25 of 82 SAMPLE RESULTS - 07 L1653392 MW-12D Collected date/time: 09/06/23 09:30 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 07:46 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 07:46 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 07:46 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 07:46 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 07:46 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 07:46 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 07:46 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 07:46 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Styrene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 07:46 WG2129193 Toluene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 07:46 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 07:46 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 07:46 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 07:46 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 07:46 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 07:46 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 07:46 WG2129193 (S) Toluene-d8 116 80.0-120 09/09/2023 07:46 WG2129193 (S) 4-Bromofluorobenzene 103 77.0-126 09/09/2023 07:46 WG2129193 (S) 1,2-Dichloroethane-d4 103 70.0-130 09/09/2023 07:46 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Acenaphthylene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Anthracene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzidine ND J4 0.0105 1.05 09/12/2023 06:41 WG2128627 Benzo(a)anthracene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzo(b)fluoranthene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzo(k)fluoranthene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzo(g,h,i)perylene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzo(a)pyrene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Bis(2-chlorethoxy)methane ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Bis(2-chloroethyl)ether ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0105 1.05 09/12/2023 06:41 WG2128627 4-Bromophenyl-phenylether ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2-Chloronaphthalene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 4-Chlorophenyl-phenylether ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Chrysene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Dibenz(a,h)anthracene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 1,2-Dichlorobenzene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 1,3-Dichlorobenzene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 1,4-Dichlorobenzene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 26 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 26 of 82 SAMPLE RESULTS - 07 L1653392 MW-12D Collected date/time: 09/06/23 09:30 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,4-Dinitrotoluene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,6-Dinitrotoluene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Fluoranthene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Fluorene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Hexachlorobenzene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Hexachloro-1,3-butadiene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Hexachlorocyclopentadiene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Hexachloroethane ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Isophorone ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Naphthalene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Nitrobenzene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 n-Nitrosodimethylamine ND 0.0105 1.05 09/12/2023 06:41 WG2128627 n-Nitrosodiphenylamine ND 0.0105 1.05 09/12/2023 06:41 WG2128627 n-Nitrosodi-n-propylamine ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Phenanthrene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 Benzylbutyl phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Di-n-butyl phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Diethyl phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Dimethyl phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Di-n-octyl phthalate ND 0.00315 1.05 09/12/2023 06:41 WG2128627 Pyrene ND 0.00105 1.05 09/12/2023 06:41 WG2128627 1,2,4-Trichlorobenzene ND 0.0105 1.05 09/12/2023 06:41 WG2128627 4-Chloro-3-methylphenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2-Chlorophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,4-Dichlorophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,4-Dimethylphenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,4-Dinitrophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2-Nitrophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 4-Nitrophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Pentachlorophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 Phenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 2,4,6-Trichlorophenol ND 0.0105 1.05 09/12/2023 06:41 WG2128627 (S) 2-Fluorophenol 28.6 10.0-120 09/12/2023 06:41 WG2128627 (S) Phenol-d5 17.7 10.0-120 09/12/2023 06:41 WG2128627 (S) Nitrobenzene-d5 55.8 10.0-127 09/12/2023 06:41 WG2128627 (S) 2-Fluorobiphenyl 55.6 10.0-130 09/12/2023 06:41 WG2128627 (S) 2,4,6-Tribromophenol 54.3 10.0-155 09/12/2023 06:41 WG2128627 (S) p-Terphenyl-d14 66.7 10.0-128 09/12/2023 06:41 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000420 1.05 09/14/2023 15:30 WG2130709 (S) Nitrobenzene-d5 34.2 10.0-120 09/14/2023 15:30 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 27 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 27 of 82 SAMPLE RESULTS - 08 L1653392 MW-12S Collected date/time: 09/06/23 10:20 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:41 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 20:50 WG2128429 Barium,Dissolved 0.0859 0.00500 1 09/08/2023 20:50 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:50 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:50 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:50 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 20:50 WG2128429 Manganese,Dissolved 0.141 0.0100 1 09/08/2023 20:50 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:50 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:50 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 08:07 WG2129193 Acrolein ND 0.0500 1 09/09/2023 08:07 WG2129193 Acrylonitrile ND 0.0100 1 09/09/2023 08:07 WG2129193 Benzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Bromobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Bromodichloromethane ND 0.00100 1 09/09/2023 08:07 WG2129193 Bromoform ND 0.00100 1 09/09/2023 08:07 WG2129193 Bromomethane ND 0.00500 1 09/09/2023 08:07 WG2129193 n-Butylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 sec-Butylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 tert-Butylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Carbon tetrachloride ND 0.00100 1 09/09/2023 08:07 WG2129193 Chlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Chlorodibromomethane ND 0.00100 1 09/09/2023 08:07 WG2129193 Chloroethane ND 0.00500 1 09/09/2023 08:07 WG2129193 Chloroform ND 0.00500 1 09/09/2023 08:07 WG2129193 Chloromethane ND 0.00250 1 09/09/2023 08:07 WG2129193 2-Chlorotoluene ND 0.00100 1 09/09/2023 08:07 WG2129193 4-Chlorotoluene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 08:07 WG2129193 1,2-Dibromoethane ND 0.00100 1 09/09/2023 08:07 WG2129193 Dibromomethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 08:07 WG2129193 1,1-Dichloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2-Dichloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1-Dichloroethene 0.00130 0.00100 1 09/09/2023 08:07 WG2129193 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 08:07 WG2129193 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2-Dichloropropane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1-Dichloropropene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,3-Dichloropropane ND 0.00100 1 09/09/2023 08:07 WG2129193 cis-1,3-Dichloropropene ND J4 0.00100 1 09/09/2023 08:07 WG2129193 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 08:07 WG2129193 2,2-Dichloropropane ND 0.00100 1 09/09/2023 08:07 WG2129193 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 28 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 28 of 82 SAMPLE RESULTS - 08 L1653392 MW-12S Collected date/time: 09/06/23 10:20 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 08:07 WG2129193 Ethylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 08:07 WG2129193 Isopropylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 p-Isopropyltoluene ND 0.00100 1 09/09/2023 08:07 WG2129193 2-Butanone (MEK)ND 0.0100 1 09/09/2023 08:07 WG2129193 Methylene Chloride ND 0.00500 1 09/09/2023 08:07 WG2129193 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 08:07 WG2129193 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 08:07 WG2129193 Naphthalene ND 0.00500 1 09/09/2023 08:07 WG2129193 n-Propylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Styrene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 Tetrachloroethene ND 0.00100 1 09/09/2023 08:07 WG2129193 Toluene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2,3-Trichlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 08:07 WG2129193 Trichloroethene ND 0.00100 1 09/09/2023 08:07 WG2129193 Trichlorofluoromethane ND 0.00500 1 09/09/2023 08:07 WG2129193 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 08:07 WG2129193 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 08:07 WG2129193 Vinyl chloride ND 0.00100 1 09/09/2023 08:07 WG2129193 Xylenes, Total ND 0.00300 1 09/09/2023 08:07 WG2129193 (S) Toluene-d8 114 80.0-120 09/09/2023 08:07 WG2129193 (S) 4-Bromofluorobenzene 103 77.0-126 09/09/2023 08:07 WG2129193 (S) 1,2-Dichloroethane-d4 104 70.0-130 09/09/2023 08:07 WG2129193 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/12/2023 07:02 WG2128627 Acenaphthylene ND 0.00100 1 09/12/2023 07:02 WG2128627 Anthracene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzidine ND J4 0.0100 1 09/12/2023 07:02 WG2128627 Benzo(a)anthracene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzo(b)fluoranthene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzo(k)fluoranthene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzo(g,h,i)perylene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzo(a)pyrene ND 0.00100 1 09/12/2023 07:02 WG2128627 Bis(2-chlorethoxy)methane ND 0.0100 1 09/12/2023 07:02 WG2128627 Bis(2-chloroethyl)ether ND 0.0100 1 09/12/2023 07:02 WG2128627 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/12/2023 07:02 WG2128627 4-Bromophenyl-phenylether ND 0.0100 1 09/12/2023 07:02 WG2128627 2-Chloronaphthalene ND 0.00100 1 09/12/2023 07:02 WG2128627 4-Chlorophenyl-phenylether ND 0.0100 1 09/12/2023 07:02 WG2128627 Chrysene ND 0.00100 1 09/12/2023 07:02 WG2128627 Dibenz(a,h)anthracene ND 0.00100 1 09/12/2023 07:02 WG2128627 1,2-Dichlorobenzene ND 0.0100 1 09/12/2023 07:02 WG2128627 1,3-Dichlorobenzene ND 0.0100 1 09/12/2023 07:02 WG2128627 1,4-Dichlorobenzene ND 0.0100 1 09/12/2023 07:02 WG2128627 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 29 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 29 of 82 SAMPLE RESULTS - 08 L1653392 MW-12S Collected date/time: 09/06/23 10:20 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/12/2023 07:02 WG2128627 2,4-Dinitrotoluene ND 0.0100 1 09/12/2023 07:02 WG2128627 2,6-Dinitrotoluene ND 0.0100 1 09/12/2023 07:02 WG2128627 Fluoranthene ND 0.00100 1 09/12/2023 07:02 WG2128627 Fluorene ND 0.00100 1 09/12/2023 07:02 WG2128627 Hexachlorobenzene ND 0.00100 1 09/12/2023 07:02 WG2128627 Hexachloro-1,3-butadiene ND 0.0100 1 09/12/2023 07:02 WG2128627 Hexachlorocyclopentadiene ND 0.0100 1 09/12/2023 07:02 WG2128627 Hexachloroethane ND 0.0100 1 09/12/2023 07:02 WG2128627 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/12/2023 07:02 WG2128627 Isophorone ND 0.0100 1 09/12/2023 07:02 WG2128627 Naphthalene ND 0.00100 1 09/12/2023 07:02 WG2128627 Nitrobenzene ND 0.0100 1 09/12/2023 07:02 WG2128627 n-Nitrosodimethylamine ND 0.0100 1 09/12/2023 07:02 WG2128627 n-Nitrosodiphenylamine ND 0.0100 1 09/12/2023 07:02 WG2128627 n-Nitrosodi-n-propylamine ND 0.0100 1 09/12/2023 07:02 WG2128627 Phenanthrene ND 0.00100 1 09/12/2023 07:02 WG2128627 Benzylbutyl phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Di-n-butyl phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Diethyl phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Dimethyl phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Di-n-octyl phthalate ND 0.00300 1 09/12/2023 07:02 WG2128627 Pyrene ND 0.00100 1 09/12/2023 07:02 WG2128627 1,2,4-Trichlorobenzene ND 0.0100 1 09/12/2023 07:02 WG2128627 4-Chloro-3-methylphenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2-Chlorophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2,4-Dichlorophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2,4-Dimethylphenol ND 0.0100 1 09/12/2023 07:02 WG2128627 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2,4-Dinitrophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2-Nitrophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 4-Nitrophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 Pentachlorophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 Phenol ND 0.0100 1 09/12/2023 07:02 WG2128627 2,4,6-Trichlorophenol ND 0.0100 1 09/12/2023 07:02 WG2128627 (S) 2-Fluorophenol 21.5 10.0-120 09/12/2023 07:02 WG2128627 (S) Phenol-d5 15.5 10.0-120 09/12/2023 07:02 WG2128627 (S) Nitrobenzene-d5 59.6 10.0-127 09/12/2023 07:02 WG2128627 (S) 2-Fluorobiphenyl 59.7 10.0-130 09/12/2023 07:02 WG2128627 (S) 2,4,6-Tribromophenol 35.7 10.0-155 09/12/2023 07:02 WG2128627 (S) p-Terphenyl-d14 54.2 10.0-128 09/12/2023 07:02 WG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00141 0.000408 1.02 09/14/2023 15:49 WG2130709 (S) Nitrobenzene-d5 36.3 10.0-120 09/14/2023 15:49 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 30 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 30 of 82 SAMPLE RESULTS - 09 L1653392 MW-17 Collected date/time: 09/06/23 11:15 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:44 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 20:53 WG2128429 Barium,Dissolved 0.102 0.00500 1 09/08/2023 20:53 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:53 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:53 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:53 WG2128429 Lead,Dissolved 0.00601 0.00600 1 09/08/2023 20:53 WG2128429 Manganese,Dissolved 0.211 0.0100 1 09/08/2023 20:53 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:53 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:53 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 10:39 WG2129196 Acrolein ND 0.0500 1 09/09/2023 10:39 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 10:39 WG2129196 Benzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 10:39 WG2129196 Bromoform ND 0.00100 1 09/09/2023 10:39 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 10:39 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 10:39 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 10:39 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 10:39 WG2129196 Chloroform ND 0.00500 1 09/09/2023 10:39 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 10:39 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 10:39 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 10:39 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 10:39 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 10:39 WG2129196 1,1-Dichloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2-Dichloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1-Dichloroethene ND 0.00100 1 09/09/2023 10:39 WG2129196 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 10:39 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 10:39 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 10:39 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 10:39 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 10:39 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 31 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 31 of 82 SAMPLE RESULTS - 09 L1653392 MW-17 Collected date/time: 09/06/23 11:15 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 10:39 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 10:39 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 10:39 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 10:39 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 10:39 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 10:39 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 10:39 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 10:39 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Styrene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 10:39 WG2129196 Toluene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 10:39 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 10:39 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 10:39 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 10:39 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 10:39 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 10:39 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 10:39 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 10:39 WG2129196 (S) Toluene-d8 109 80.0-120 09/09/2023 10:39 WG2129196 (S) 4-Bromofluorobenzene 87.3 77.0-126 09/09/2023 10:39 WG2129196 (S) 1,2-Dichloroethane-d4 105 70.0-130 09/09/2023 10:39 WG2129196 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/14/2023 00:35 WG2129511 Acenaphthylene ND 0.00100 1 09/14/2023 00:35 WG2129511 Anthracene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzidine ND J4 0.0100 1 09/14/2023 00:35 WG2129511 Benzo(a)anthracene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzo(b)fluoranthene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzo(k)fluoranthene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzo(g,h,i)perylene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzo(a)pyrene ND 0.00100 1 09/14/2023 00:35 WG2129511 Bis(2-chlorethoxy)methane ND 0.0100 1 09/14/2023 00:35 WG2129511 Bis(2-chloroethyl)ether ND 0.0100 1 09/14/2023 00:35 WG2129511 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/14/2023 00:35 WG2129511 4-Bromophenyl-phenylether ND 0.0100 1 09/14/2023 00:35 WG2129511 2-Chloronaphthalene ND 0.00100 1 09/14/2023 00:35 WG2129511 4-Chlorophenyl-phenylether ND 0.0100 1 09/14/2023 00:35 WG2129511 Chrysene ND 0.00100 1 09/14/2023 00:35 WG2129511 Dibenz(a,h)anthracene ND 0.00100 1 09/14/2023 00:35 WG2129511 1,2-Dichlorobenzene ND 0.0100 1 09/14/2023 00:35 WG2129511 1,3-Dichlorobenzene ND 0.0100 1 09/14/2023 00:35 WG2129511 1,4-Dichlorobenzene ND 0.0100 1 09/14/2023 00:35 WG2129511 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 32 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 32 of 82 SAMPLE RESULTS - 09 L1653392 MW-17 Collected date/time: 09/06/23 11:15 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/14/2023 00:35 WG2129511 2,4-Dinitrotoluene ND 0.0100 1 09/14/2023 00:35 WG2129511 2,6-Dinitrotoluene ND 0.0100 1 09/14/2023 00:35 WG2129511 Fluoranthene ND 0.00100 1 09/14/2023 00:35 WG2129511 Fluorene ND 0.00100 1 09/14/2023 00:35 WG2129511 Hexachlorobenzene ND 0.00100 1 09/14/2023 00:35 WG2129511 Hexachloro-1,3-butadiene ND 0.0100 1 09/14/2023 00:35 WG2129511 Hexachlorocyclopentadiene ND 0.0100 1 09/14/2023 00:35 WG2129511 Hexachloroethane ND 0.0100 1 09/14/2023 00:35 WG2129511 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/14/2023 00:35 WG2129511 Isophorone ND 0.0100 1 09/14/2023 00:35 WG2129511 Naphthalene ND 0.00100 1 09/14/2023 00:35 WG2129511 Nitrobenzene ND 0.0100 1 09/14/2023 00:35 WG2129511 n-Nitrosodimethylamine ND 0.0100 1 09/14/2023 00:35 WG2129511 n-Nitrosodiphenylamine ND 0.0100 1 09/14/2023 00:35 WG2129511 n-Nitrosodi-n-propylamine ND 0.0100 1 09/14/2023 00:35 WG2129511 Phenanthrene ND 0.00100 1 09/14/2023 00:35 WG2129511 Benzylbutyl phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Di-n-butyl phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Diethyl phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Dimethyl phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Di-n-octyl phthalate ND 0.00300 1 09/14/2023 00:35 WG2129511 Pyrene ND 0.00100 1 09/14/2023 00:35 WG2129511 1,2,4-Trichlorobenzene ND 0.0100 1 09/14/2023 00:35 WG2129511 4-Chloro-3-methylphenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2-Chlorophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2,4-Dichlorophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2,4-Dimethylphenol ND 0.0100 1 09/14/2023 00:35 WG2129511 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2,4-Dinitrophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2-Nitrophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 4-Nitrophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 Pentachlorophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 Phenol ND 0.0100 1 09/14/2023 00:35 WG2129511 2,4,6-Trichlorophenol ND 0.0100 1 09/14/2023 00:35 WG2129511 (S) 2-Fluorophenol 39.8 10.0-120 09/14/2023 00:35 WG2129511 (S) Phenol-d5 27.5 10.0-120 09/14/2023 00:35 WG2129511 (S) Nitrobenzene-d5 60.8 10.0-127 09/14/2023 00:35 WG2129511 (S) 2-Fluorobiphenyl 56.3 10.0-130 09/14/2023 00:35 WG2129511 (S) 2,4,6-Tribromophenol 59.5 10.0-155 09/14/2023 00:35 WG2129511 (S) p-Terphenyl-d14 68.1 10.0-128 09/14/2023 00:35 WG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00257 0.000400 1 09/14/2023 12:56 WG2130709 (S) Nitrobenzene-d5 45.0 10.0-120 09/14/2023 12:56 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 33 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 33 of 82 SAMPLE RESULTS - 10 L1653392 MW-18 Collected date/time: 09/06/23 12:10 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:46 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 20:56 WG2128429 Barium,Dissolved 0.146 0.00500 1 09/08/2023 20:56 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:56 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:56 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:56 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 20:56 WG2128429 Manganese,Dissolved 0.168 0.0100 1 09/08/2023 20:56 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:56 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:56 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 10:59 WG2129196 Acrolein ND 0.0500 1 09/09/2023 10:59 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 10:59 WG2129196 Benzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 10:59 WG2129196 Bromoform ND 0.00100 1 09/09/2023 10:59 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 10:59 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 10:59 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 10:59 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 10:59 WG2129196 Chloroform ND 0.00500 1 09/09/2023 10:59 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 10:59 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 10:59 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 10:59 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 10:59 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 10:59 WG2129196 1,1-Dichloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2-Dichloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1-Dichloroethene ND 0.00100 1 09/09/2023 10:59 WG2129196 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 10:59 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 10:59 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 10:59 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 10:59 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 10:59 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 34 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 34 of 82 SAMPLE RESULTS - 10 L1653392 MW-18 Collected date/time: 09/06/23 12:10 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 10:59 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 10:59 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 10:59 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 10:59 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 10:59 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 10:59 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 10:59 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 10:59 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Styrene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 10:59 WG2129196 Toluene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 10:59 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 10:59 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 10:59 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 10:59 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 10:59 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 10:59 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 10:59 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 10:59 WG2129196 (S) Toluene-d8 107 80.0-120 09/09/2023 10:59 WG2129196 (S) 4-Bromofluorobenzene 99.8 77.0-126 09/09/2023 10:59 WG2129196 (S) 1,2-Dichloroethane-d4 106 70.0-130 09/09/2023 10:59 WG2129196 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/13/2023 18:32 WG2129511 Acenaphthylene ND 0.00100 1 09/13/2023 18:32 WG2129511 Anthracene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzidine ND J4 0.0100 1 09/13/2023 18:32 WG2129511 Benzo(a)anthracene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzo(b)fluoranthene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzo(k)fluoranthene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzo(g,h,i)perylene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzo(a)pyrene ND 0.00100 1 09/13/2023 18:32 WG2129511 Bis(2-chlorethoxy)methane ND 0.0100 1 09/13/2023 18:32 WG2129511 Bis(2-chloroethyl)ether ND 0.0100 1 09/13/2023 18:32 WG2129511 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/13/2023 18:32 WG2129511 4-Bromophenyl-phenylether ND 0.0100 1 09/13/2023 18:32 WG2129511 2-Chloronaphthalene ND 0.00100 1 09/13/2023 18:32 WG2129511 4-Chlorophenyl-phenylether ND 0.0100 1 09/13/2023 18:32 WG2129511 Chrysene ND 0.00100 1 09/13/2023 18:32 WG2129511 Dibenz(a,h)anthracene ND 0.00100 1 09/13/2023 18:32 WG2129511 1,2-Dichlorobenzene ND 0.0100 1 09/13/2023 18:32 WG2129511 1,3-Dichlorobenzene ND 0.0100 1 09/13/2023 18:32 WG2129511 1,4-Dichlorobenzene ND 0.0100 1 09/13/2023 18:32 WG2129511 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 35 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 35 of 82 SAMPLE RESULTS - 10 L1653392 MW-18 Collected date/time: 09/06/23 12:10 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/13/2023 18:32 WG2129511 2,4-Dinitrotoluene ND 0.0100 1 09/13/2023 18:32 WG2129511 2,6-Dinitrotoluene ND 0.0100 1 09/13/2023 18:32 WG2129511 Fluoranthene ND 0.00100 1 09/13/2023 18:32 WG2129511 Fluorene ND 0.00100 1 09/13/2023 18:32 WG2129511 Hexachlorobenzene ND 0.00100 1 09/13/2023 18:32 WG2129511 Hexachloro-1,3-butadiene ND 0.0100 1 09/13/2023 18:32 WG2129511 Hexachlorocyclopentadiene ND 0.0100 1 09/13/2023 18:32 WG2129511 Hexachloroethane ND 0.0100 1 09/13/2023 18:32 WG2129511 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/13/2023 18:32 WG2129511 Isophorone ND 0.0100 1 09/13/2023 18:32 WG2129511 Naphthalene ND 0.00100 1 09/13/2023 18:32 WG2129511 Nitrobenzene ND 0.0100 1 09/13/2023 18:32 WG2129511 n-Nitrosodimethylamine ND 0.0100 1 09/13/2023 18:32 WG2129511 n-Nitrosodiphenylamine ND 0.0100 1 09/13/2023 18:32 WG2129511 n-Nitrosodi-n-propylamine ND 0.0100 1 09/13/2023 18:32 WG2129511 Phenanthrene ND 0.00100 1 09/13/2023 18:32 WG2129511 Benzylbutyl phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Di-n-butyl phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Diethyl phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Dimethyl phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Di-n-octyl phthalate ND 0.00300 1 09/13/2023 18:32 WG2129511 Pyrene ND 0.00100 1 09/13/2023 18:32 WG2129511 1,2,4-Trichlorobenzene ND 0.0100 1 09/13/2023 18:32 WG2129511 4-Chloro-3-methylphenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2-Chlorophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2,4-Dichlorophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2,4-Dimethylphenol ND 0.0100 1 09/13/2023 18:32 WG2129511 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2,4-Dinitrophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2-Nitrophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 4-Nitrophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 Pentachlorophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 Phenol ND 0.0100 1 09/13/2023 18:32 WG2129511 2,4,6-Trichlorophenol ND 0.0100 1 09/13/2023 18:32 WG2129511 (S) 2-Fluorophenol 39.8 10.0-120 09/13/2023 18:32 WG2129511 (S) Phenol-d5 26.8 10.0-120 09/13/2023 18:32 WG2129511 (S) Nitrobenzene-d5 54.5 10.0-127 09/13/2023 18:32 WG2129511 (S) 2-Fluorobiphenyl 54.1 10.0-130 09/13/2023 18:32 WG2129511 (S) 2,4,6-Tribromophenol 54.0 10.0-155 09/13/2023 18:32 WG2129511 (S) p-Terphenyl-d14 64.3 10.0-128 09/13/2023 18:32 WG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00248 0.000400 1 09/14/2023 13:16 WG2130709 (S) Nitrobenzene-d5 47.5 10.0-120 09/14/2023 13:16 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 36 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 36 of 82 SAMPLE RESULTS - 11 L1653392 MW-13D Collected date/time: 09/06/23 14:35 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:48 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.254 0.0100 1 09/08/2023 20:58 WG2128429 Barium,Dissolved 0.140 0.00500 1 09/08/2023 20:58 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 20:58 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 20:58 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 20:58 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 20:58 WG2128429 Manganese,Dissolved ND 0.0100 1 09/08/2023 20:58 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 20:58 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 20:58 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 11:20 WG2129196 Acrolein ND 0.0500 1 09/09/2023 11:20 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 11:20 WG2129196 Benzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 11:20 WG2129196 Bromoform ND 0.00100 1 09/09/2023 11:20 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 11:20 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 11:20 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 11:20 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 11:20 WG2129196 Chloroform ND 0.00500 1 09/09/2023 11:20 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 11:20 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 11:20 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 11:20 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 11:20 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 11:20 WG2129196 1,1-Dichloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2-Dichloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1-Dichloroethene 0.0117 0.00100 1 09/09/2023 11:20 WG2129196 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 11:20 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 11:20 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 11:20 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 11:20 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 11:20 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 37 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 37 of 82 SAMPLE RESULTS - 11 L1653392 MW-13D Collected date/time: 09/06/23 14:35 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 11:20 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 11:20 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 11:20 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 11:20 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 11:20 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 11:20 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 11:20 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 11:20 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Styrene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 11:20 WG2129196 Toluene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 11:20 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 11:20 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 11:20 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 11:20 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 11:20 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 11:20 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 11:20 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 11:20 WG2129196 (S) Toluene-d8 107 80.0-120 09/09/2023 11:20 WG2129196 (S) 4-Bromofluorobenzene 100 77.0-126 09/09/2023 11:20 WG2129196 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/09/2023 11:20 WG2129196 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/14/2023 00:57 WG2129511 Acenaphthylene ND 0.00100 1 09/14/2023 00:57 WG2129511 Anthracene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzidine ND J4 0.0100 1 09/14/2023 00:57 WG2129511 Benzo(a)anthracene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzo(b)fluoranthene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzo(k)fluoranthene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzo(g,h,i)perylene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzo(a)pyrene ND 0.00100 1 09/14/2023 00:57 WG2129511 Bis(2-chlorethoxy)methane ND 0.0100 1 09/14/2023 00:57 WG2129511 Bis(2-chloroethyl)ether ND 0.0100 1 09/14/2023 00:57 WG2129511 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/14/2023 00:57 WG2129511 4-Bromophenyl-phenylether ND 0.0100 1 09/14/2023 00:57 WG2129511 2-Chloronaphthalene ND 0.00100 1 09/14/2023 00:57 WG2129511 4-Chlorophenyl-phenylether ND 0.0100 1 09/14/2023 00:57 WG2129511 Chrysene ND 0.00100 1 09/14/2023 00:57 WG2129511 Dibenz(a,h)anthracene ND 0.00100 1 09/14/2023 00:57 WG2129511 1,2-Dichlorobenzene ND 0.0100 1 09/14/2023 00:57 WG2129511 1,3-Dichlorobenzene ND 0.0100 1 09/14/2023 00:57 WG2129511 1,4-Dichlorobenzene ND 0.0100 1 09/14/2023 00:57 WG2129511 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 38 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 38 of 82 SAMPLE RESULTS - 11 L1653392 MW-13D Collected date/time: 09/06/23 14:35 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 3,3-Dichlorobenzidine ND 0.0100 1 09/14/2023 00:57 WG2129511 2,4-Dinitrotoluene ND 0.0100 1 09/14/2023 00:57 WG2129511 2,6-Dinitrotoluene ND 0.0100 1 09/14/2023 00:57 WG2129511 Fluoranthene ND 0.00100 1 09/14/2023 00:57 WG2129511 Fluorene ND 0.00100 1 09/14/2023 00:57 WG2129511 Hexachlorobenzene ND 0.00100 1 09/14/2023 00:57 WG2129511 Hexachloro-1,3-butadiene ND 0.0100 1 09/14/2023 00:57 WG2129511 Hexachlorocyclopentadiene ND 0.0100 1 09/14/2023 00:57 WG2129511 Hexachloroethane ND 0.0100 1 09/14/2023 00:57 WG2129511 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/14/2023 00:57 WG2129511 Isophorone ND 0.0100 1 09/14/2023 00:57 WG2129511 Naphthalene ND 0.00100 1 09/14/2023 00:57 WG2129511 Nitrobenzene ND 0.0100 1 09/14/2023 00:57 WG2129511 n-Nitrosodimethylamine ND 0.0100 1 09/14/2023 00:57 WG2129511 n-Nitrosodiphenylamine ND 0.0100 1 09/14/2023 00:57 WG2129511 n-Nitrosodi-n-propylamine ND 0.0100 1 09/14/2023 00:57 WG2129511 Phenanthrene ND 0.00100 1 09/14/2023 00:57 WG2129511 Benzylbutyl phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Di-n-butyl phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Diethyl phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Dimethyl phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Di-n-octyl phthalate ND 0.00300 1 09/14/2023 00:57 WG2129511 Pyrene ND 0.00100 1 09/14/2023 00:57 WG2129511 1,2,4-Trichlorobenzene ND 0.0100 1 09/14/2023 00:57 WG2129511 4-Chloro-3-methylphenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2-Chlorophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2,4-Dichlorophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2,4-Dimethylphenol ND 0.0100 1 09/14/2023 00:57 WG2129511 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2,4-Dinitrophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2-Nitrophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 4-Nitrophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 Pentachlorophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 Phenol ND 0.0100 1 09/14/2023 00:57 WG2129511 2,4,6-Trichlorophenol ND 0.0100 1 09/14/2023 00:57 WG2129511 (S) 2-Fluorophenol 31.1 10.0-120 09/14/2023 00:57 WG2129511 (S) Phenol-d5 21.7 10.0-120 09/14/2023 00:57 WG2129511 (S) Nitrobenzene-d5 49.8 10.0-127 09/14/2023 00:57 WG2129511 (S) 2-Fluorobiphenyl 47.8 10.0-130 09/14/2023 00:57 WG2129511 (S) 2,4,6-Tribromophenol 52.5 10.0-155 09/14/2023 00:57 WG2129511 (S) p-Terphenyl-d14 65.7 10.0-128 09/14/2023 00:57 WG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.00105 0.000416 1.04 09/14/2023 13:35 WG2130709 (S) Nitrobenzene-d5 41.9 10.0-120 09/14/2023 13:35 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 39 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 39 of 82 SAMPLE RESULTS - 12 L1653392 MW-13S Collected date/time: 09/06/23 15:35 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:51 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 21:07 WG2128429 Barium,Dissolved 0.0247 0.00500 1 09/08/2023 21:07 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 21:07 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 21:07 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 21:07 WG2128429 Lead,Dissolved 0.00751 0.00600 1 09/08/2023 21:07 WG2128429 Manganese,Dissolved 0.896 0.0100 1 09/08/2023 21:07 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 21:07 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 21:07 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 11:40 WG2129196 Acrolein ND 0.0500 1 09/09/2023 11:40 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 11:40 WG2129196 Benzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 11:40 WG2129196 Bromoform ND 0.00100 1 09/09/2023 11:40 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 11:40 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 11:40 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 11:40 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 11:40 WG2129196 Chloroform 0.00603 0.00500 1 09/09/2023 11:40 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 11:40 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 11:40 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 11:40 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 11:40 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 11:40 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 11:40 WG2129196 1,1-Dichloroethane ND 0.500 500 09/13/2023 06:39 WG2131061 1,2-Dichloroethane 0.0103 0.00100 1 09/09/2023 11:40 WG2129196 1,1-Dichloroethene 8.46 0.500 500 09/13/2023 06:39 WG2131061 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 11:40 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 11:40 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 11:40 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 11:40 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 11:40 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 11:40 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 40 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 40 of 82 SAMPLE RESULTS - 12 L1653392 MW-13S Collected date/time: 09/06/23 15:35 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 11:40 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 11:40 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 11:40 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 11:40 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 11:40 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 11:40 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 11:40 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 11:40 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Styrene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 11:40 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 11:40 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 11:40 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 11:40 WG2129196 Toluene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 11:40 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,1,1-Trichloroethane 0.138 0.00100 1 09/09/2023 11:40 WG2129196 1,1,2-Trichloroethane 0.00318 0.00100 1 09/09/2023 11:40 WG2129196 Trichloroethene 0.00817 0.00100 1 09/09/2023 11:40 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 11:40 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 11:40 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 11:40 WG2129196 Vinyl chloride 0.0699 0.00100 1 09/09/2023 11:40 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 11:40 WG2129196 (S) Toluene-d8 109 80.0-120 09/09/2023 11:40 WG2129196 (S) Toluene-d8 114 80.0-120 09/13/2023 06:39 WG2131061 (S) 4-Bromofluorobenzene 94.3 77.0-126 09/09/2023 11:40 WG2129196 (S) 4-Bromofluorobenzene 104 77.0-126 09/13/2023 06:39 WG2131061 (S) 1,2-Dichloroethane-d4 109 70.0-130 09/09/2023 11:40 WG2129196 (S) 1,2-Dichloroethane-d4 112 70.0-130 09/13/2023 06:39 WG2131061 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acenaphthene ND 0.00100 1 09/14/2023 01:39 WG2129511 Acenaphthylene ND 0.00100 1 09/14/2023 01:39 WG2129511 Anthracene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzidine ND J4 0.0100 1 09/14/2023 01:39 WG2129511 Benzo(a)anthracene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzo(b)fluoranthene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzo(k)fluoranthene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzo(g,h,i)perylene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzo(a)pyrene ND 0.00100 1 09/14/2023 01:39 WG2129511 Bis(2-chlorethoxy)methane ND 0.0100 1 09/14/2023 01:39 WG2129511 Bis(2-chloroethyl)ether ND 0.0100 1 09/14/2023 01:39 WG2129511 2,2-Oxybis(1-Chloropropane)ND 0.0100 1 09/14/2023 01:39 WG2129511 4-Bromophenyl-phenylether ND 0.0100 1 09/14/2023 01:39 WG2129511 2-Chloronaphthalene ND 0.00100 1 09/14/2023 01:39 WG2129511 4-Chlorophenyl-phenylether ND 0.0100 1 09/14/2023 01:39 WG2129511 Chrysene ND 0.00100 1 09/14/2023 01:39 WG2129511 Dibenz(a,h)anthracene ND 0.00100 1 09/14/2023 01:39 WG2129511 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 41 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 41 of 82 SAMPLE RESULTS - 12 L1653392 MW-13S Collected date/time: 09/06/23 15:35 Semi Volatile Organic Compounds (GC/MS) by Method 8270C Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,2-Dichlorobenzene ND 0.0100 1 09/14/2023 01:39 WG2129511 1,3-Dichlorobenzene ND 0.0100 1 09/14/2023 01:39 WG2129511 1,4-Dichlorobenzene ND 0.0100 1 09/14/2023 01:39 WG2129511 3,3-Dichlorobenzidine ND 0.0100 1 09/14/2023 01:39 WG2129511 2,4-Dinitrotoluene ND 0.0100 1 09/14/2023 01:39 WG2129511 2,6-Dinitrotoluene ND 0.0100 1 09/14/2023 01:39 WG2129511 Fluoranthene ND 0.00100 1 09/14/2023 01:39 WG2129511 Fluorene ND 0.00100 1 09/14/2023 01:39 WG2129511 Hexachlorobenzene ND 0.00100 1 09/14/2023 01:39 WG2129511 Hexachloro-1,3-butadiene ND 0.0100 1 09/14/2023 01:39 WG2129511 Hexachlorocyclopentadiene ND 0.0100 1 09/14/2023 01:39 WG2129511 Hexachloroethane ND 0.0100 1 09/14/2023 01:39 WG2129511 Indeno(1,2,3-cd)pyrene ND 0.00100 1 09/14/2023 01:39 WG2129511 Isophorone ND 0.0100 1 09/14/2023 01:39 WG2129511 Naphthalene ND 0.00100 1 09/14/2023 01:39 WG2129511 Nitrobenzene ND 0.0100 1 09/14/2023 01:39 WG2129511 n-Nitrosodimethylamine ND 0.0100 1 09/14/2023 01:39 WG2129511 n-Nitrosodiphenylamine ND 0.0100 1 09/14/2023 01:39 WG2129511 n-Nitrosodi-n-propylamine ND 0.0100 1 09/14/2023 01:39 WG2129511 Phenanthrene ND 0.00100 1 09/14/2023 01:39 WG2129511 Benzylbutyl phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Bis(2-ethylhexyl)phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Di-n-butyl phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Diethyl phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Dimethyl phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Di-n-octyl phthalate ND 0.00300 1 09/14/2023 01:39 WG2129511 Pyrene ND 0.00100 1 09/14/2023 01:39 WG2129511 1,2,4-Trichlorobenzene ND 0.0100 1 09/14/2023 01:39 WG2129511 4-Chloro-3-methylphenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2-Chlorophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2,4-Dichlorophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2,4-Dimethylphenol ND 0.0100 1 09/14/2023 01:39 WG2129511 4,6-Dinitro-2-methylphenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2,4-Dinitrophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2-Nitrophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 4-Nitrophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 Pentachlorophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 Phenol ND 0.0100 1 09/14/2023 01:39 WG2129511 2,4,6-Trichlorophenol ND 0.0100 1 09/14/2023 01:39 WG2129511 (S) 2-Fluorophenol 41.1 10.0-120 09/14/2023 01:39 WG2129511 (S) Phenol-d5 34.6 10.0-120 09/14/2023 01:39 WG2129511 (S) Nitrobenzene-d5 56.7 10.0-127 09/14/2023 01:39 WG2129511 (S) 2-Fluorobiphenyl 53.5 10.0-130 09/14/2023 01:39 WG2129511 (S) 2,4,6-Tribromophenol 47.1 10.0-155 09/14/2023 01:39 WG2129511 (S) p-Terphenyl-d14 65.2 10.0-128 09/14/2023 01:39 WG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.798 E 0.000436 1.09 09/14/2023 16:09 WG2130709 (S) Nitrobenzene-d5 10.6 10.0-120 09/14/2023 16:09 WG2130709 Sample Narrative: L1653392-12 WG2130709: Duplicate Analysis performed due to QC failure. Reporting most compliant data. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 42 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 42 of 82 SAMPLE RESULTS - 13 L1653392 MW-8 Collected date/time: 09/06/23 11:12 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:53 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.214 0.0100 1 09/08/2023 21:10 WG2128429 Barium,Dissolved 0.327 0.00500 1 09/08/2023 21:10 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 21:10 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 21:10 WG2128429 Iron,Dissolved 0.289 0.100 1 09/08/2023 21:10 WG2128429 Lead,Dissolved 0.00736 0.00600 1 09/08/2023 21:10 WG2128429 Manganese,Dissolved 0.0295 0.0100 1 09/08/2023 21:10 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 21:10 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 21:10 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 12:01 WG2129196 Acrolein ND 0.0500 1 09/09/2023 12:01 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 12:01 WG2129196 Benzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 12:01 WG2129196 Bromoform ND 0.00100 1 09/09/2023 12:01 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 12:01 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 12:01 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 12:01 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 12:01 WG2129196 Chloroform ND 0.00500 1 09/09/2023 12:01 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 12:01 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 12:01 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 12:01 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 12:01 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 12:01 WG2129196 1,1-Dichloroethane ND 0.00100 1 09/13/2023 02:01 WG2131061 1,2-Dichloroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1-Dichloroethene ND 0.00100 1 09/13/2023 02:01 WG2131061 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:01 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 12:01 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:01 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:01 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 12:01 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 43 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 43 of 82 SAMPLE RESULTS - 13 L1653392 MW-8 Collected date/time: 09/06/23 11:12 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 12:01 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 12:01 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 12:01 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 12:01 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 12:01 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 12:01 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 12:01 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 12:01 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Styrene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 12:01 WG2129196 Toluene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 12:01 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 12:01 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 12:01 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 12:01 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 12:01 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 12:01 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 12:01 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 12:01 WG2129196 (S) Toluene-d8 105 80.0-120 09/09/2023 12:01 WG2129196 (S) Toluene-d8 113 80.0-120 09/13/2023 02:01 WG2131061 (S) 4-Bromofluorobenzene 98.2 77.0-126 09/09/2023 12:01 WG2129196 (S) 4-Bromofluorobenzene 101 77.0-126 09/13/2023 02:01 WG2131061 (S) 1,2-Dichloroethane-d4 109 70.0-130 09/09/2023 12:01 WG2129196 (S) 1,2-Dichloroethane-d4 109 70.0-130 09/13/2023 02:01 WG2131061 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000400 1 09/14/2023 13:54 WG2130709 (S) Nitrobenzene-d5 31.8 10.0-120 09/14/2023 13:54 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 44 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 44 of 82 SAMPLE RESULTS - 14 L1653392 GMW-8 Collected date/time: 09/06/23 14:12 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:55 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved ND 0.0100 1 09/08/2023 21:13 WG2128429 Barium,Dissolved 0.0447 0.00500 1 09/08/2023 21:13 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 21:13 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 21:13 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 21:13 WG2128429 Lead,Dissolved ND 0.00600 1 09/08/2023 21:13 WG2128429 Manganese,Dissolved 0.446 0.0100 1 09/08/2023 21:13 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 21:13 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 21:13 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 12:21 WG2129196 Acrolein ND 0.0500 1 09/09/2023 12:21 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 12:21 WG2129196 Benzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 12:21 WG2129196 Bromoform ND 0.00100 1 09/09/2023 12:21 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 12:21 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 12:21 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 12:21 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 12:21 WG2129196 Chloroform ND 0.00500 1 09/09/2023 12:21 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 12:21 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 12:21 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 12:21 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 12:21 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 12:21 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 12:21 WG2129196 1,1-Dichloroethane 0.00497 0.00100 1 09/09/2023 12:21 WG2129196 1,2-Dichloroethane ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1-Dichloroethene 0.0135 0.00100 1 09/13/2023 02:22 WG2131061 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:21 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 12:21 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:21 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:21 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 12:21 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 45 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 45 of 82 SAMPLE RESULTS - 14 L1653392 GMW-8 Collected date/time: 09/06/23 14:12 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 12:21 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 12:21 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 12:21 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 12:21 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 12:21 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 12:21 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 12:21 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 12:21 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Styrene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 12:21 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 12:21 WG2129196 Toluene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 12:21 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,1,1-Trichloroethane 0.00182 0.00100 1 09/09/2023 12:21 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 12:21 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 12:21 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 12:21 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 12:21 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 12:21 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 12:21 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 12:21 WG2129196 (S) Toluene-d8 108 80.0-120 09/09/2023 12:21 WG2129196 (S) Toluene-d8 113 80.0-120 09/13/2023 02:22 WG2131061 (S) 4-Bromofluorobenzene 102 77.0-126 09/09/2023 12:21 WG2129196 (S) 4-Bromofluorobenzene 104 77.0-126 09/13/2023 02:22 WG2131061 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/09/2023 12:21 WG2129196 (S) 1,2-Dichloroethane-d4 107 70.0-130 09/13/2023 02:22 WG2131061 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane 0.0251 0.000400 1 09/14/2023 14:13 WG2130709 (S) Nitrobenzene-d5 42.2 10.0-120 09/14/2023 14:13 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 46 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 46 of 82 SAMPLE RESULTS - 15 L1653392 MW-9 Collected date/time: 09/06/23 13:45 Mercury by Method 7470A Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Mercury,Dissolved ND 0.000200 1 09/13/2023 13:58 WG2129690 Metals (ICP) by Method 6010B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Arsenic,Dissolved 0.332 0.0100 1 09/08/2023 21:15 WG2128429 Barium,Dissolved 0.257 0.00500 1 09/08/2023 21:15 WG2128429 Cadmium,Dissolved ND 0.00200 1 09/08/2023 21:15 WG2128429 Chromium,Dissolved ND 0.0100 1 09/08/2023 21:15 WG2128429 Iron,Dissolved ND 0.100 1 09/08/2023 21:15 WG2128429 Lead,Dissolved 0.00647 0.00600 1 09/08/2023 21:15 WG2128429 Manganese,Dissolved 0.0149 0.0100 1 09/08/2023 21:15 WG2128429 Selenium,Dissolved ND 0.0100 1 09/08/2023 21:15 WG2128429 Silver,Dissolved ND 0.00500 1 09/08/2023 21:15 WG2128429 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Acetone ND 0.0500 1 09/09/2023 12:42 WG2129196 Acrolein ND 0.0500 1 09/09/2023 12:42 WG2129196 Acrylonitrile ND 0.0100 1 09/09/2023 12:42 WG2129196 Benzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Bromobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Bromodichloromethane ND 0.00100 1 09/09/2023 12:42 WG2129196 Bromoform ND 0.00100 1 09/09/2023 12:42 WG2129196 Bromomethane ND 0.00500 1 09/09/2023 12:42 WG2129196 n-Butylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 sec-Butylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 tert-Butylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Carbon tetrachloride ND 0.00100 1 09/09/2023 12:42 WG2129196 Chlorobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Chlorodibromomethane ND 0.00100 1 09/09/2023 12:42 WG2129196 Chloroethane ND 0.00500 1 09/09/2023 12:42 WG2129196 Chloroform ND 0.00500 1 09/09/2023 12:42 WG2129196 Chloromethane ND 0.00250 1 09/09/2023 12:42 WG2129196 2-Chlorotoluene ND 0.00100 1 09/09/2023 12:42 WG2129196 4-Chlorotoluene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2-Dibromo-3-Chloropropane ND 0.00500 1 09/09/2023 12:42 WG2129196 1,2-Dibromoethane ND 0.00100 1 09/09/2023 12:42 WG2129196 Dibromomethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2-Dichlorobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,3-Dichlorobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,4-Dichlorobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Dichlorodifluoromethane ND 0.00500 1 09/09/2023 12:42 WG2129196 1,1-Dichloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2-Dichloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1-Dichloroethene ND 0.00100 1 09/13/2023 02:44 WG2131061 cis-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:42 WG2129196 trans-1,2-Dichloroethene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2-Dichloropropane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1-Dichloropropene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,3-Dichloropropane ND 0.00100 1 09/09/2023 12:42 WG2129196 cis-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:42 WG2129196 trans-1,3-Dichloropropene ND 0.00100 1 09/09/2023 12:42 WG2129196 2,2-Dichloropropane ND 0.00100 1 09/09/2023 12:42 WG2129196 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 47 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 47 of 82 SAMPLE RESULTS - 15 L1653392 MW-9 Collected date/time: 09/06/23 13:45 Volatile Organic Compounds (GC/MS) by Method 8260B Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time Di-isopropyl ether ND 0.00100 1 09/09/2023 12:42 WG2129196 Ethylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Hexachloro-1,3-butadiene ND 0.00100 1 09/09/2023 12:42 WG2129196 Isopropylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 p-Isopropyltoluene ND 0.00100 1 09/09/2023 12:42 WG2129196 2-Butanone (MEK)ND 0.0100 1 09/09/2023 12:42 WG2129196 Methylene Chloride ND 0.00500 1 09/09/2023 12:42 WG2129196 4-Methyl-2-pentanone (MIBK)ND 0.0100 1 09/09/2023 12:42 WG2129196 Methyl tert-butyl ether ND 0.00100 1 09/09/2023 12:42 WG2129196 Naphthalene ND 0.00500 1 09/09/2023 12:42 WG2129196 n-Propylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Styrene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1,1,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1,2,2-Tetrachloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1,2-Trichlorotrifluoroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 Tetrachloroethene ND 0.00100 1 09/09/2023 12:42 WG2129196 Toluene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2,3-Trichlorobenzene ND J4 0.00100 1 09/09/2023 12:42 WG2129196 1,2,4-Trichlorobenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1,1-Trichloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 1,1,2-Trichloroethane ND 0.00100 1 09/09/2023 12:42 WG2129196 Trichloroethene ND 0.00100 1 09/09/2023 12:42 WG2129196 Trichlorofluoromethane ND 0.00500 1 09/09/2023 12:42 WG2129196 1,2,3-Trichloropropane ND 0.00250 1 09/09/2023 12:42 WG2129196 1,2,4-Trimethylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,2,3-Trimethylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 1,3,5-Trimethylbenzene ND 0.00100 1 09/09/2023 12:42 WG2129196 Vinyl chloride ND 0.00100 1 09/09/2023 12:42 WG2129196 Xylenes, Total ND 0.00300 1 09/09/2023 12:42 WG2129196 (S) Toluene-d8 106 80.0-120 09/09/2023 12:42 WG2129196 (S) Toluene-d8 112 80.0-120 09/13/2023 02:44 WG2131061 (S) 4-Bromofluorobenzene 107 77.0-126 09/09/2023 12:42 WG2129196 (S) 4-Bromofluorobenzene 105 77.0-126 09/13/2023 02:44 WG2131061 (S) 1,2-Dichloroethane-d4 106 70.0-130 09/09/2023 12:42 WG2129196 (S) 1,2-Dichloroethane-d4 103 70.0-130 09/13/2023 02:44 WG2131061 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time 1,4-Dioxane ND 0.000424 1.06 09/14/2023 15:11 WG2130709 (S) Nitrobenzene-d5 35.6 10.0-120 09/14/2023 15:11 WG2130709 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 48 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 48 of 82 QUALITY CONTROL SUMMARYWG2129689 Mercury by Method 7470A L1653392-01 Method Blank (MB) (MB) R3971547-1 09/11/23 10:38 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3971547-2 09/11/23 10:40 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00269 89.7 80.0-120 L1653365-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653365-07 09/11/23 10:43 • (MS) R3971547-3 09/11/23 10:45 • (MSD) R3971547-4 09/11/23 10:47 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00208 0.00222 69.3 74.0 1 75.0-125 J6 J6 6.58 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 49 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 49 of 82 QUALITY CONTROL SUMMARYWG2129690 Mercury by Method 7470A L1653392-02,03,04,05,06,07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R3972572-1 09/13/23 13:03 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury,Dissolved U 0.000100 0.000200 Laboratory Control Sample (LCS) (LCS) R3972572-2 09/13/23 13:10 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury,Dissolved 0.00300 0.00287 95.6 80.0-120 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/13/23 13:12 • (MS) R3972572-3 09/13/23 13:15 • (MSD) R3972572-4 09/13/23 13:17 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury,Dissolved 0.00300 ND 0.00266 0.00268 88.8 89.3 1 75.0-125 0.596 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 50 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 50 of 82 QUALITY CONTROL SUMMARYWG2128429 Metals (ICP) by Method 6010B L1653392-01,02,03,04,05,06,07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R3971235-1 09/08/23 20:00 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Arsenic,Dissolved U 0.00440 0.0100 Barium,Dissolved U 0.000736 0.00500 Cadmium,Dissolved U 0.000479 0.00200 Chromium,Dissolved U 0.00140 0.0100 Iron,Dissolved 0.0195 J 0.0180 0.100 Lead,Dissolved U 0.00299 0.00600 Manganese,Dissolved U 0.000934 0.0100 Selenium,Dissolved U 0.00735 0.0100 Silver,Dissolved U 0.00154 0.00500 Laboratory Control Sample (LCS) (LCS) R3971235-2 09/08/23 20:03 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Arsenic,Dissolved 1.00 1.01 101 80.0-120 Barium,Dissolved 1.00 1.02 102 80.0-120 Cadmium,Dissolved 1.00 0.991 99.1 80.0-120 Chromium,Dissolved 1.00 0.998 99.8 80.0-120 Iron,Dissolved 10.0 9.92 99.2 80.0-120 Lead,Dissolved 1.00 0.992 99.2 80.0-120 Manganese,Dissolved 1.00 0.983 98.3 80.0-120 Selenium,Dissolved 1.00 0.976 97.6 80.0-120 Silver,Dissolved 0.200 0.200 99.9 80.0-120 L1653392-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653392-06 09/08/23 20:06 • (MS) R3971235-4 09/08/23 20:11 • (MSD) R3971235-5 09/08/23 20:14 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Arsenic,Dissolved 1.00 0.301 1.32 1.32 102 102 1 75.0-125 0.142 20 Barium,Dissolved 1.00 0.0704 1.04 1.05 97.1 98.4 1 75.0-125 1.18 20 Cadmium,Dissolved 1.00 ND 0.979 0.990 97.9 99.0 1 75.0-125 1.13 20 Chromium,Dissolved 1.00 ND 0.961 0.977 96.1 97.7 1 75.0-125 1.62 20 Iron,Dissolved 10.0 0.182 9.72 9.83 95.4 96.5 1 75.0-125 1.09 20 Lead,Dissolved 1.00 0.00773 0.990 1.00 98.2 99.2 1 75.0-125 1.00 20 Manganese,Dissolved 1.00 ND 0.940 0.955 93.4 94.9 1 75.0-125 1.56 20 Selenium,Dissolved 1.00 ND 1.01 1.02 101 102 1 75.0-125 0.848 20 Silver,Dissolved 0.200 ND 0.201 0.203 101 102 1 75.0-125 1.07 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 51 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 51 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R3972793-3 09/08/23 23:27 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 52 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 52 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R3972793-3 09/08/23 23:27 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 119 80.0-120 (S) 4-Bromofluorobenzene 106 77.0-126 (S) 1,2-Dichloroethane-d4 105 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972793-1 09/08/23 22:22 • (LCSD) R3972793-2 09/08/23 22:44 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Acetone 0.0250 0.0188 0.0176 75.2 70.4 19.0-160 6.59 27 Acrolein 0.0250 0.00836 0.00801 33.4 32.0 10.0-160 4.28 26 Acrylonitrile 0.0250 0.0158 0.0166 63.2 66.4 55.0-149 4.94 20 Benzene 0.00500 0.00442 0.00475 88.4 95.0 70.0-123 7.20 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 53 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 53 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972793-1 09/08/23 22:22 • (LCSD) R3972793-2 09/08/23 22:44 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Bromobenzene 0.00500 0.00407 0.00445 81.4 89.0 73.0-121 8.92 20 Bromodichloromethane 0.00500 0.00391 0.00439 78.2 87.8 75.0-120 11.6 20 Bromoform 0.00500 0.00370 0.00412 74.0 82.4 68.0-132 10.7 20 Bromomethane 0.00500 0.00554 0.00566 111 113 10.0-160 2.14 25 n-Butylbenzene 0.00500 0.00395 0.00403 79.0 80.6 73.0-125 2.01 20 sec-Butylbenzene 0.00500 0.00442 0.00467 88.4 93.4 75.0-125 5.50 20 tert-Butylbenzene 0.00500 0.00421 0.00471 84.2 94.2 76.0-124 11.2 20 Carbon tetrachloride 0.00500 0.00431 0.00460 86.2 92.0 68.0-126 6.51 20 Chlorobenzene 0.00500 0.00478 0.00518 95.6 104 80.0-121 8.03 20 Chlorodibromomethane 0.00500 0.00416 0.00450 83.2 90.0 77.0-125 7.85 20 Chloroethane 0.00500 0.00549 0.00598 110 120 47.0-150 8.54 20 Chloroform 0.00500 0.00457 0.00490 91.4 98.0 73.0-120 6.97 20 Chloromethane 0.00500 0.00334 0.00353 66.8 70.6 41.0-142 5.53 20 2-Chlorotoluene 0.00500 0.00461 0.00485 92.2 97.0 76.0-123 5.07 20 4-Chlorotoluene 0.00500 0.00445 0.00457 89.0 91.4 75.0-122 2.66 20 1,2-Dibromo-3-Chloropropane 0.00500 0.00383 0.00385 76.6 77.0 58.0-134 0.521 20 1,2-Dibromoethane 0.00500 0.00422 0.00453 84.4 90.6 80.0-122 7.09 20 Dibromomethane 0.00500 0.00453 0.00485 90.6 97.0 80.0-120 6.82 20 1,2-Dichlorobenzene 0.00500 0.00414 0.00436 82.8 87.2 79.0-121 5.18 20 1,3-Dichlorobenzene 0.00500 0.00420 0.00479 84.0 95.8 79.0-120 13.1 20 1,4-Dichlorobenzene 0.00500 0.00436 0.00478 87.2 95.6 79.0-120 9.19 20 Dichlorodifluoromethane 0.00500 0.00432 0.00418 86.4 83.6 51.0-149 3.29 20 1,1-Dichloroethane 0.00500 0.00432 0.00473 86.4 94.6 70.0-126 9.06 20 1,2-Dichloroethane 0.00500 0.00496 0.00498 99.2 99.6 70.0-128 0.402 20 1,1-Dichloroethene 0.00500 0.00447 0.00457 89.4 91.4 71.0-124 2.21 20 cis-1,2-Dichloroethene 0.00500 0.00454 0.00454 90.8 90.8 73.0-120 0.000 20 trans-1,2-Dichloroethene 0.00500 0.00435 0.00475 87.0 95.0 73.0-120 8.79 20 1,2-Dichloropropane 0.00500 0.00421 0.00461 84.2 92.2 77.0-125 9.07 20 1,1-Dichloropropene 0.00500 0.00447 0.00463 89.4 92.6 74.0-126 3.52 20 1,3-Dichloropropane 0.00500 0.00442 0.00489 88.4 97.8 80.0-120 10.1 20 cis-1,3-Dichloropropene 0.00500 0.00393 0.00402 78.6 80.4 80.0-123 J4 2.26 20 trans-1,3-Dichloropropene 0.00500 0.00401 0.00412 80.2 82.4 78.0-124 2.71 20 2,2-Dichloropropane 0.00500 0.00346 0.00386 69.2 77.2 58.0-130 10.9 20 Di-isopropyl ether 0.00500 0.00298 0.00324 59.6 64.8 58.0-138 8.36 20 Ethylbenzene 0.00500 0.00465 0.00502 93.0 100 79.0-123 7.65 20 Hexachloro-1,3-butadiene 0.00500 0.00326 0.00368 65.2 73.6 54.0-138 12.1 20 Isopropylbenzene 0.00500 0.00468 0.00493 93.6 98.6 76.0-127 5.20 20 p-Isopropyltoluene 0.00500 0.00416 0.00470 83.2 94.0 76.0-125 12.2 20 2-Butanone (MEK)0.0250 0.0215 0.0222 86.0 88.8 44.0-160 3.20 20 Methylene Chloride 0.00500 0.00407 0.00456 81.4 91.2 67.0-120 11.4 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 54 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 54 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972793-1 09/08/23 22:22 • (LCSD) R3972793-2 09/08/23 22:44 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 4-Methyl-2-pentanone (MIBK)0.0250 0.0175 0.0194 70.0 77.6 68.0-142 10.3 20 Methyl tert-butyl ether 0.00500 0.00412 0.00435 82.4 87.0 68.0-125 5.43 20 Naphthalene 0.00500 0.00455 0.00491 91.0 98.2 54.0-135 7.61 20 n-Propylbenzene 0.00500 0.00462 0.00487 92.4 97.4 77.0-124 5.27 20 Styrene 0.00500 0.00432 0.00477 86.4 95.4 73.0-130 9.90 20 1,1,1,2-Tetrachloroethane 0.00500 0.00425 0.00485 85.0 97.0 75.0-125 13.2 20 1,1,2,2-Tetrachloroethane 0.00500 0.00386 0.00409 77.2 81.8 65.0-130 5.79 20 1,1,2-Trichlorotrifluoroethane 0.00500 0.00474 0.00461 94.8 92.2 69.0-132 2.78 20 Tetrachloroethene 0.00500 0.00430 0.00494 86.0 98.8 72.0-132 13.9 20 Toluene 0.00500 0.00472 0.00526 94.4 105 79.0-120 10.8 20 1,2,3-Trichlorobenzene 0.00500 0.00402 0.00425 80.4 85.0 50.0-138 5.56 20 1,2,4-Trichlorobenzene 0.00500 0.00392 0.00426 78.4 85.2 57.0-137 8.31 20 1,1,1-Trichloroethane 0.00500 0.00444 0.00491 88.8 98.2 73.0-124 10.1 20 1,1,2-Trichloroethane 0.00500 0.00458 0.00484 91.6 96.8 80.0-120 5.52 20 Trichloroethene 0.00500 0.00483 0.00503 96.6 101 78.0-124 4.06 20 Trichlorofluoromethane 0.00500 0.00577 0.00564 115 113 59.0-147 2.28 20 1,2,3-Trichloropropane 0.00500 0.00447 0.00493 89.4 98.6 73.0-130 9.79 20 1,2,4-Trimethylbenzene 0.00500 0.00452 0.00478 90.4 95.6 76.0-121 5.59 20 1,2,3-Trimethylbenzene 0.00500 0.00426 0.00463 85.2 92.6 77.0-120 8.32 20 1,3,5-Trimethylbenzene 0.00500 0.00435 0.00462 87.0 92.4 76.0-122 6.02 20 Vinyl chloride 0.00500 0.00440 0.00467 88.0 93.4 67.0-131 5.95 20 Xylenes, Total 0.0150 0.0138 0.0148 92.0 98.7 79.0-123 6.99 20 (S) Toluene-d8 113 114 80.0-120 (S) 4-Bromofluorobenzene 103 102 77.0-126 (S) 1,2-Dichloroethane-d4 107 106 70.0-130 L1653365-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653365-07 09/09/23 03:49 • (MS) R3972793-4 09/09/23 08:29 • (MSD) R3972793-5 09/09/23 08:51 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acetone 0.0250 ND ND ND 58.4 59.6 1 10.0-160 2.03 35 Acrolein 0.0250 ND ND ND 43.6 43.6 1 10.0-160 0.000 39 Acrylonitrile 0.0250 ND 0.0126 0.0157 50.4 62.8 1 21.0-160 21.9 32 Benzene 0.00500 ND 0.00498 0.00465 99.6 93.0 1 17.0-158 6.85 27 Bromobenzene 0.00500 ND 0.00448 0.00423 89.6 84.6 1 30.0-149 5.74 28 Bromodichloromethane 0.00500 ND 0.00447 0.00438 89.4 87.6 1 31.0-150 2.03 27 Bromoform 0.00500 ND 0.00384 0.00405 76.8 81.0 1 29.0-150 5.32 29 Bromomethane 0.00500 ND ND ND 82.4 91.0 1 10.0-160 9.92 38 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 55 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 55 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 L1653365-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653365-07 09/09/23 03:49 • (MS) R3972793-4 09/09/23 08:29 • (MSD) R3972793-5 09/09/23 08:51 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% n-Butylbenzene 0.00500 ND 0.00452 0.00424 90.4 84.8 1 31.0-150 6.39 30 sec-Butylbenzene 0.00500 ND 0.00456 0.00470 91.2 94.0 1 33.0-155 3.02 29 tert-Butylbenzene 0.00500 ND 0.00460 0.00450 92.0 90.0 1 34.0-153 2.20 28 Carbon tetrachloride 0.00500 ND 0.00523 0.00472 105 94.4 1 23.0-159 10.3 28 Chlorobenzene 0.00500 ND 0.00529 0.00530 106 106 1 33.0-152 0.189 27 Chlorodibromomethane 0.00500 ND 0.00439 0.00469 87.8 93.8 1 37.0-149 6.61 27 Chloroethane 0.00500 ND 0.00968 0.00894 194 179 1 10.0-160 J5 J5 7.95 30 Chloroform 0.00500 ND 0.00513 0.00506 103 101 1 29.0-154 1.37 28 Chloromethane 0.00500 ND 0.00378 0.00380 75.6 76.0 1 10.0-160 0.528 29 2-Chlorotoluene 0.00500 ND 0.00497 0.00487 99.4 97.4 1 32.0-153 2.03 28 4-Chlorotoluene 0.00500 ND 0.00452 0.00445 90.4 89.0 1 32.0-150 1.56 28 1,2-Dibromo-3-Chloropropane 0.00500 ND ND ND 78.6 82.6 1 22.0-151 4.96 34 1,2-Dibromoethane 0.00500 ND 0.00442 0.00459 88.4 91.8 1 34.0-147 3.77 27 Dibromomethane 0.00500 ND 0.00522 0.00517 104 103 1 30.0-151 0.962 27 1,2-Dichlorobenzene 0.00500 ND 0.00438 0.00445 87.6 89.0 1 34.0-149 1.59 28 1,3-Dichlorobenzene 0.00500 ND 0.00459 0.00471 91.8 94.2 1 36.0-146 2.58 27 1,4-Dichlorobenzene 0.00500 ND 0.00465 0.00463 93.0 92.6 1 35.0-142 0.431 27 Dichlorodifluoromethane 0.00500 ND ND ND 95.8 90.0 1 10.0-160 6.24 29 1,1-Dichloroethane 0.00500 ND 0.00494 0.00467 98.8 93.4 1 25.0-158 5.62 27 1,2-Dichloroethane 0.00500 ND 0.00533 0.00518 107 104 1 29.0-151 2.85 27 1,1-Dichloroethene 0.00500 ND 0.00510 0.00510 102 102 1 11.0-160 0.000 29 cis-1,2-Dichloroethene 0.00500 ND 0.00456 0.00503 91.2 101 1 10.0-160 9.80 27 trans-1,2-Dichloroethene 0.00500 ND 0.00478 0.00481 95.6 96.2 1 17.0-153 0.626 27 1,2-Dichloropropane 0.00500 ND 0.00415 0.00440 83.0 88.0 1 30.0-156 5.85 27 1,1-Dichloropropene 0.00500 ND 0.00520 0.00510 104 102 1 25.0-158 1.94 27 1,3-Dichloropropane 0.00500 ND 0.00486 0.00484 97.2 96.8 1 38.0-147 0.412 27 cis-1,3-Dichloropropene 0.00500 ND 0.00382 0.00393 76.4 78.6 1 34.0-149 2.84 28 trans-1,3-Dichloropropene 0.00500 ND 0.00400 0.00409 80.0 81.8 1 32.0-149 2.22 28 2,2-Dichloropropane 0.00500 ND 0.00465 0.00458 93.0 91.6 1 24.0-152 1.52 29 Di-isopropyl ether 0.00500 ND 0.00327 0.00313 65.4 62.6 1 21.0-160 4.37 28 Ethylbenzene 0.00500 ND 0.00493 0.00504 98.6 101 1 30.0-155 2.21 27 Hexachloro-1,3-butadiene 0.00500 ND 0.00384 0.00399 76.8 79.8 1 20.0-154 3.83 34 Isopropylbenzene 0.00500 ND 0.00481 0.00507 96.2 101 1 28.0-157 5.26 27 p-Isopropyltoluene 0.00500 ND 0.00448 0.00454 89.6 90.8 1 30.0-154 1.33 29 2-Butanone (MEK)0.0250 ND 0.0208 0.0214 83.2 85.6 1 10.0-160 2.84 32 Methylene Chloride 0.00500 ND ND ND 94.2 89.6 1 23.0-144 5.01 28 4-Methyl-2-pentanone (MIBK)0.0250 ND 0.0178 0.0186 71.2 74.4 1 29.0-160 4.40 29 Methyl tert-butyl ether 0.00500 ND 0.00438 0.00439 87.6 87.8 1 28.0-150 0.228 29 Naphthalene 0.00500 ND ND ND 90.0 96.0 1 12.0-156 6.45 35 n-Propylbenzene 0.00500 ND 0.00489 0.00486 97.8 97.2 1 31.0-154 0.615 28 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 56 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 56 of 82 QUALITY CONTROL SUMMARYWG2129193 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-01,02,03,04,05,06,07,08 L1653365-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653365-07 09/09/23 03:49 • (MS) R3972793-4 09/09/23 08:29 • (MSD) R3972793-5 09/09/23 08:51 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Styrene 0.00500 ND 0.00429 0.00456 85.8 91.2 1 33.0-155 6.10 28 1,1,1,2-Tetrachloroethane 0.00500 ND 0.00463 0.00485 92.6 97.0 1 36.0-151 4.64 29 1,1,2,2-Tetrachloroethane 0.00500 ND 0.00456 0.00459 91.2 91.8 1 33.0-150 0.656 28 1,1,2-Trichlorotrifluoroethane 0.00500 ND 0.00559 0.00532 112 106 1 23.0-160 4.95 30 Tetrachloroethene 0.00500 ND 0.00498 0.00493 99.6 98.6 1 10.0-160 1.01 27 Toluene 0.00500 ND 0.00530 0.00522 106 104 1 26.0-154 1.52 28 1,2,3-Trichlorobenzene 0.00500 ND 0.00407 0.00425 81.4 85.0 1 17.0-150 4.33 36 1,2,4-Trichlorobenzene 0.00500 ND 0.00447 0.00429 89.4 85.8 1 24.0-150 4.11 33 1,1,1-Trichloroethane 0.00500 ND 0.00538 0.00519 108 104 1 23.0-160 3.60 28 1,1,2-Trichloroethane 0.00500 ND 0.00496 0.00516 99.2 103 1 35.0-147 3.95 27 Trichloroethene 0.00500 ND 0.00487 0.00483 97.4 96.6 1 10.0-160 0.825 25 Trichlorofluoromethane 0.00500 ND 0.00650 0.00636 130 127 1 17.0-160 2.18 31 1,2,3-Trichloropropane 0.00500 ND 0.00475 0.00488 95.0 97.6 1 34.0-151 2.70 29 1,2,4-Trimethylbenzene 0.00500 ND 0.00453 0.00453 90.6 90.6 1 26.0-154 0.000 27 1,2,3-Trimethylbenzene 0.00500 ND 0.00440 0.00457 88.0 91.4 1 32.0-149 3.79 28 1,3,5-Trimethylbenzene 0.00500 ND 0.00477 0.00465 95.4 93.0 1 28.0-153 2.55 27 Vinyl chloride 0.00500 ND 0.00496 0.00512 99.2 102 1 10.0-160 3.17 27 Xylenes, Total 0.0150 ND 0.0148 0.0147 98.7 98.0 1 29.0-154 0.678 28 (S) Toluene-d8 110 113 80.0-120 (S) 4-Bromofluorobenzene 102 101 77.0-126 (S) 1,2-Dichloroethane-d4 108 111 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 57 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 57 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 Method Blank (MB) (MB) R3972210-3 09/09/23 09:41 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acetone U 0.0113 0.0500 Acrolein U 0.00254 0.0500 Acrylonitrile U 0.000671 0.0100 Benzene U 0.0000941 0.00100 Bromobenzene U 0.000118 0.00100 Bromodichloromethane U 0.000136 0.00100 Bromoform U 0.000129 0.00100 Bromomethane U 0.000605 0.00500 n-Butylbenzene U 0.000157 0.00100 sec-Butylbenzene U 0.000125 0.00100 tert-Butylbenzene U 0.000127 0.00100 Carbon tetrachloride U 0.000128 0.00100 Chlorobenzene U 0.000116 0.00100 Chlorodibromomethane U 0.000140 0.00100 Chloroethane U 0.000192 0.00500 Chloroform U 0.000111 0.00500 Chloromethane U 0.000960 0.00250 2-Chlorotoluene U 0.000106 0.00100 4-Chlorotoluene U 0.000114 0.00100 1,2-Dibromo-3-Chloropropane U 0.000276 0.00500 1,2-Dibromoethane U 0.000126 0.00100 Dibromomethane U 0.000122 0.00100 1,2-Dichlorobenzene U 0.000107 0.00100 1,3-Dichlorobenzene U 0.000110 0.00100 1,4-Dichlorobenzene U 0.000120 0.00100 Dichlorodifluoromethane U 0.000374 0.00500 1,1-Dichloroethane U 0.000100 0.00100 1,2-Dichloroethane U 0.0000819 0.00100 1,1-Dichloroethene U 0.000188 0.00100 cis-1,2-Dichloroethene U 0.000126 0.00100 trans-1,2-Dichloroethene U 0.000149 0.00100 1,2-Dichloropropane U 0.000149 0.00100 1,1-Dichloropropene U 0.000142 0.00100 1,3-Dichloropropane U 0.000110 0.00100 cis-1,3-Dichloropropene U 0.000111 0.00100 trans-1,3-Dichloropropene U 0.000118 0.00100 2,2-Dichloropropane U 0.000161 0.00100 Di-isopropyl ether U 0.000105 0.00100 Ethylbenzene U 0.000137 0.00100 Hexachloro-1,3-butadiene U 0.000337 0.00100 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 58 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 58 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 Method Blank (MB) (MB) R3972210-3 09/09/23 09:41 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Isopropylbenzene U 0.000105 0.00100 p-Isopropyltoluene U 0.000120 0.00100 2-Butanone (MEK)U 0.00119 0.0100 Methylene Chloride U 0.000430 0.00500 4-Methyl-2-pentanone (MIBK)U 0.000478 0.0100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 n-Propylbenzene U 0.0000993 0.00100 Styrene U 0.000118 0.00100 1,1,1,2-Tetrachloroethane U 0.000147 0.00100 1,1,2,2-Tetrachloroethane U 0.000133 0.00100 1,1,2-Trichlorotrifluoroethane U 0.000180 0.00100 Tetrachloroethene U 0.000300 0.00100 Toluene U 0.000278 0.00100 1,2,3-Trichlorobenzene U 0.000230 0.00100 1,2,4-Trichlorobenzene U 0.000481 0.00100 1,1,1-Trichloroethane U 0.000149 0.00100 1,1,2-Trichloroethane U 0.000158 0.00100 Trichloroethene U 0.000190 0.00100 Trichlorofluoromethane U 0.000160 0.00500 1,2,3-Trichloropropane U 0.000237 0.00250 1,2,4-Trimethylbenzene U 0.000322 0.00100 1,2,3-Trimethylbenzene U 0.000104 0.00100 1,3,5-Trimethylbenzene U 0.000104 0.00100 Vinyl chloride U 0.000234 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 109 80.0-120 (S) 4-Bromofluorobenzene 103 77.0-126 (S) 1,2-Dichloroethane-d4 104 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972210-1 09/09/23 08:39 • (LCSD) R3972210-2 09/09/23 09:00 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Acetone 0.0250 0.0362 0.0371 145 148 19.0-160 2.46 27 Acrolein 0.0250 0.0307 0.0296 123 118 10.0-160 3.65 26 Acrylonitrile 0.0250 0.0299 0.0305 120 122 55.0-149 1.99 20 Benzene 0.00500 0.00554 0.00529 111 106 70.0-123 4.62 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 59 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 59 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972210-1 09/09/23 08:39 • (LCSD) R3972210-2 09/09/23 09:00 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Bromobenzene 0.00500 0.00528 0.00562 106 112 73.0-121 6.24 20 Bromodichloromethane 0.00500 0.00522 0.00518 104 104 75.0-120 0.769 20 Bromoform 0.00500 0.00387 0.00432 77.4 86.4 68.0-132 11.0 20 Bromomethane 0.00500 0.00138 0.00144 27.6 28.8 10.0-160 4.26 25 n-Butylbenzene 0.00500 0.00560 0.00465 112 93.0 73.0-125 18.5 20 sec-Butylbenzene 0.00500 0.00527 0.00530 105 106 75.0-125 0.568 20 tert-Butylbenzene 0.00500 0.00562 0.00529 112 106 76.0-124 6.05 20 Carbon tetrachloride 0.00500 0.00540 0.00509 108 102 68.0-126 5.91 20 Chlorobenzene 0.00500 0.00516 0.00489 103 97.8 80.0-121 5.37 20 Chlorodibromomethane 0.00500 0.00490 0.00489 98.0 97.8 77.0-125 0.204 20 Chloroethane 0.00500 0.00399 0.00379 79.8 75.8 47.0-150 5.14 20 Chloroform 0.00500 0.00560 0.00537 112 107 73.0-120 4.19 20 Chloromethane 0.00500 0.00565 0.00551 113 110 41.0-142 2.51 20 2-Chlorotoluene 0.00500 0.00541 0.00547 108 109 76.0-123 1.10 20 4-Chlorotoluene 0.00500 0.00587 0.00542 117 108 75.0-122 7.97 20 1,2-Dibromo-3-Chloropropane 0.00500 0.00330 0.00338 66.0 67.6 58.0-134 2.40 20 1,2-Dibromoethane 0.00500 0.00514 0.00490 103 98.0 80.0-122 4.78 20 Dibromomethane 0.00500 0.00498 0.00489 99.6 97.8 80.0-120 1.82 20 1,2-Dichlorobenzene 0.00500 0.00506 0.00515 101 103 79.0-121 1.76 20 1,3-Dichlorobenzene 0.00500 0.00519 0.00505 104 101 79.0-120 2.73 20 1,4-Dichlorobenzene 0.00500 0.00503 0.00500 101 100 79.0-120 0.598 20 Dichlorodifluoromethane 0.00500 0.00554 0.00518 111 104 51.0-149 6.72 20 1,1-Dichloroethane 0.00500 0.00579 0.00568 116 114 70.0-126 1.92 20 1,2-Dichloroethane 0.00500 0.00518 0.00522 104 104 70.0-128 0.769 20 1,1-Dichloroethene 0.00500 0.00532 0.00504 106 101 71.0-124 5.41 20 cis-1,2-Dichloroethene 0.00500 0.00528 0.00502 106 100 73.0-120 5.05 20 trans-1,2-Dichloroethene 0.00500 0.00554 0.00532 111 106 73.0-120 4.05 20 1,2-Dichloropropane 0.00500 0.00577 0.00553 115 111 77.0-125 4.25 20 1,1-Dichloropropene 0.00500 0.00537 0.00529 107 106 74.0-126 1.50 20 1,3-Dichloropropane 0.00500 0.00540 0.00534 108 107 80.0-120 1.12 20 cis-1,3-Dichloropropene 0.00500 0.00531 0.00537 106 107 80.0-123 1.12 20 trans-1,3-Dichloropropene 0.00500 0.00477 0.00452 95.4 90.4 78.0-124 5.38 20 2,2-Dichloropropane 0.00500 0.00579 0.00510 116 102 58.0-130 12.7 20 Di-isopropyl ether 0.00500 0.00617 0.00612 123 122 58.0-138 0.814 20 Ethylbenzene 0.00500 0.00508 0.00486 102 97.2 79.0-123 4.43 20 Hexachloro-1,3-butadiene 0.00500 0.00558 0.00506 112 101 54.0-138 9.77 20 Isopropylbenzene 0.00500 0.00472 0.00460 94.4 92.0 76.0-127 2.58 20 p-Isopropyltoluene 0.00500 0.00555 0.00504 111 101 76.0-125 9.63 20 2-Butanone (MEK)0.0250 0.0283 0.0286 113 114 44.0-160 1.05 20 Methylene Chloride 0.00500 0.00563 0.00555 113 111 67.0-120 1.43 20 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 60 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 60 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972210-1 09/09/23 08:39 • (LCSD) R3972210-2 09/09/23 09:00 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 4-Methyl-2-pentanone (MIBK)0.0250 0.0277 0.0280 111 112 68.0-142 1.08 20 Methyl tert-butyl ether 0.00500 0.00564 0.00559 113 112 68.0-125 0.890 20 Naphthalene 0.00500 0.00274 0.00309 54.8 61.8 54.0-135 12.0 20 n-Propylbenzene 0.00500 0.00517 0.00546 103 109 77.0-124 5.46 20 Styrene 0.00500 0.00431 0.00465 86.2 93.0 73.0-130 7.59 20 1,1,1,2-Tetrachloroethane 0.00500 0.00549 0.00515 110 103 75.0-125 6.39 20 1,1,2,2-Tetrachloroethane 0.00500 0.00515 0.00543 103 109 65.0-130 5.29 20 1,1,2-Trichlorotrifluoroethane 0.00500 0.00558 0.00522 112 104 69.0-132 6.67 20 Tetrachloroethene 0.00500 0.00500 0.00465 100 93.0 72.0-132 7.25 20 Toluene 0.00500 0.00543 0.00510 109 102 79.0-120 6.27 20 1,2,3-Trichlorobenzene 0.00500 0.00190 0.00210 38.0 42.0 50.0-138 J4 J4 10.0 20 1,2,4-Trichlorobenzene 0.00500 0.00306 0.00341 61.2 68.2 57.0-137 10.8 20 1,1,1-Trichloroethane 0.00500 0.00540 0.00506 108 101 73.0-124 6.50 20 1,1,2-Trichloroethane 0.00500 0.00520 0.00532 104 106 80.0-120 2.28 20 Trichloroethene 0.00500 0.00491 0.00485 98.2 97.0 78.0-124 1.23 20 Trichlorofluoromethane 0.00500 0.00512 0.00510 102 102 59.0-147 0.391 20 1,2,3-Trichloropropane 0.00500 0.00534 0.00543 107 109 73.0-130 1.67 20 1,2,4-Trimethylbenzene 0.00500 0.00536 0.00512 107 102 76.0-121 4.58 20 1,2,3-Trimethylbenzene 0.00500 0.00524 0.00527 105 105 77.0-120 0.571 20 1,3,5-Trimethylbenzene 0.00500 0.00535 0.00550 107 110 76.0-122 2.76 20 Vinyl chloride 0.00500 0.00437 0.00413 87.4 82.6 67.0-131 5.65 20 Xylenes, Total 0.0150 0.0156 0.0143 104 95.3 79.0-123 8.70 20 (S) Toluene-d8 105 102 80.0-120 (S) 4-Bromofluorobenzene 97.4 101 77.0-126 (S) 1,2-Dichloroethane-d4 105 108 70.0-130 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/09/23 14:24 • (MS) R3972210-4 09/09/23 17:09 • (MSD) R3972210-5 09/09/23 17:29 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acetone 0.0250 ND ND ND 140 146 1 10.0-160 4.48 35 Acrolein 0.0250 ND ND ND 80.4 88.4 1 10.0-160 9.48 39 Acrylonitrile 0.0250 ND 0.0328 0.0330 131 132 1 21.0-160 0.608 32 Benzene 0.00500 ND 0.00594 0.00569 119 114 1 17.0-158 4.30 27 Bromobenzene 0.00500 ND 0.00490 0.00560 98.0 112 1 30.0-149 13.3 28 Bromodichloromethane 0.00500 ND 0.00550 0.00559 110 112 1 31.0-150 1.62 27 Bromoform 0.00500 ND 0.00472 0.00475 94.4 95.0 1 29.0-150 0.634 29 Bromomethane 0.00500 ND ND ND 24.8 30.4 1 10.0-160 20.3 38 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 61 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 61 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/09/23 14:24 • (MS) R3972210-4 09/09/23 17:09 • (MSD) R3972210-5 09/09/23 17:29 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% n-Butylbenzene 0.00500 ND 0.00501 0.00489 100 97.8 1 31.0-150 2.42 30 sec-Butylbenzene 0.00500 ND 0.00533 0.00554 107 111 1 33.0-155 3.86 29 tert-Butylbenzene 0.00500 ND 0.00544 0.00558 109 112 1 34.0-153 2.54 28 Carbon tetrachloride 0.00500 ND 0.00588 0.00576 118 115 1 23.0-159 2.06 28 Chlorobenzene 0.00500 ND 0.00528 0.00555 106 111 1 33.0-152 4.99 27 Chlorodibromomethane 0.00500 ND 0.00507 0.00525 101 105 1 37.0-149 3.49 27 Chloroethane 0.00500 ND ND ND 82.2 86.0 1 10.0-160 4.52 30 Chloroform 0.00500 ND 0.00581 0.00566 116 113 1 29.0-154 2.62 28 Chloromethane 0.00500 ND 0.00644 0.00643 129 129 1 10.0-160 0.155 29 2-Chlorotoluene 0.00500 ND 0.00545 0.00578 109 116 1 32.0-153 5.88 28 4-Chlorotoluene 0.00500 ND 0.00559 0.00581 112 116 1 32.0-150 3.86 28 1,2-Dibromo-3-Chloropropane 0.00500 ND ND ND 75.6 76.2 1 22.0-151 0.791 34 1,2-Dibromoethane 0.00500 ND 0.00537 0.00560 107 112 1 34.0-147 4.19 27 Dibromomethane 0.00500 ND 0.00542 0.00536 108 107 1 30.0-151 1.11 27 1,2-Dichlorobenzene 0.00500 ND 0.00502 0.00511 100 102 1 34.0-149 1.78 28 1,3-Dichlorobenzene 0.00500 ND 0.00519 0.00538 104 108 1 36.0-146 3.60 27 1,4-Dichlorobenzene 0.00500 ND 0.00508 0.00528 102 106 1 35.0-142 3.86 27 Dichlorodifluoromethane 0.00500 ND 0.00609 0.00592 122 118 1 10.0-160 2.83 29 1,1-Dichloroethane 0.00500 ND 0.00604 0.00617 121 123 1 25.0-158 2.13 27 1,2-Dichloroethane 0.00500 ND 0.00555 0.00538 111 108 1 29.0-151 3.11 27 1,1-Dichloroethene 0.00500 ND 0.00578 0.00580 116 116 1 11.0-160 0.345 29 cis-1,2-Dichloroethene 0.00500 ND 0.00515 0.00561 103 112 1 10.0-160 8.55 27 trans-1,2-Dichloroethene 0.00500 ND 0.00586 0.00572 117 114 1 17.0-153 2.42 27 1,2-Dichloropropane 0.00500 ND 0.00588 0.00571 118 114 1 30.0-156 2.93 27 1,1-Dichloropropene 0.00500 ND 0.00601 0.00585 120 117 1 25.0-158 2.70 27 1,3-Dichloropropane 0.00500 ND 0.00567 0.00561 113 112 1 38.0-147 1.06 27 cis-1,3-Dichloropropene 0.00500 ND 0.00509 0.00517 102 103 1 34.0-149 1.56 28 trans-1,3-Dichloropropene 0.00500 ND 0.00449 0.00482 89.8 96.4 1 32.0-149 7.09 28 2,2-Dichloropropane 0.00500 ND 0.00547 0.00531 109 106 1 24.0-152 2.97 29 Di-isopropyl ether 0.00500 ND 0.00656 0.00644 131 129 1 21.0-160 1.85 28 Ethylbenzene 0.00500 ND 0.00528 0.00544 106 109 1 30.0-155 2.99 27 Hexachloro-1,3-butadiene 0.00500 ND 0.00482 0.00457 96.4 91.4 1 20.0-154 5.32 34 Isopropylbenzene 0.00500 ND 0.00435 0.00531 87.0 106 1 28.0-157 19.9 27 p-Isopropyltoluene 0.00500 ND 0.00521 0.00523 104 105 1 30.0-154 0.383 29 2-Butanone (MEK)0.0250 ND 0.0316 0.0303 126 121 1 10.0-160 4.20 32 Methylene Chloride 0.00500 ND 0.00570 0.00566 114 113 1 23.0-144 0.704 28 4-Methyl-2-pentanone (MIBK)0.0250 ND 0.0328 0.0332 131 133 1 29.0-160 1.21 29 Methyl tert-butyl ether 0.00500 ND 0.00587 0.00589 117 118 1 28.0-150 0.340 29 Naphthalene 0.00500 ND ND ND 71.2 70.8 1 12.0-156 0.563 35 n-Propylbenzene 0.00500 ND 0.00506 0.00568 101 114 1 31.0-154 11.5 28 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 62 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 62 of 82 QUALITY CONTROL SUMMARYWG2129196 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-09,10,11,12,13,14,15 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/09/23 14:24 • (MS) R3972210-4 09/09/23 17:09 • (MSD) R3972210-5 09/09/23 17:29 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Styrene 0.00500 ND 0.00415 0.00501 83.0 100 1 33.0-155 18.8 28 1,1,1,2-Tetrachloroethane 0.00500 ND 0.00545 0.00562 109 112 1 36.0-151 3.07 29 1,1,2,2-Tetrachloroethane 0.00500 ND 0.00516 0.00612 103 122 1 33.0-150 17.0 28 1,1,2-Trichlorotrifluoroethane 0.00500 ND 0.00575 0.00545 115 109 1 23.0-160 5.36 30 Tetrachloroethene 0.00500 ND 0.00539 0.00519 108 104 1 10.0-160 3.78 27 Toluene 0.00500 ND 0.00549 0.00558 110 112 1 26.0-154 1.63 28 1,2,3-Trichlorobenzene 0.00500 ND 0.00253 0.00281 50.6 56.2 1 17.0-150 10.5 36 1,2,4-Trichlorobenzene 0.00500 ND 0.00379 0.00394 75.8 78.8 1 24.0-150 3.88 33 1,1,1-Trichloroethane 0.00500 ND 0.00571 0.00555 114 111 1 23.0-160 2.84 28 1,1,2-Trichloroethane 0.00500 ND 0.00550 0.00576 110 115 1 35.0-147 4.62 27 Trichloroethene 0.00500 ND 0.00536 0.00516 107 103 1 10.0-160 3.80 25 Trichlorofluoromethane 0.00500 ND 0.00565 0.00571 113 114 1 17.0-160 1.06 31 1,2,3-Trichloropropane 0.00500 ND 0.00588 0.00598 118 120 1 34.0-151 1.69 29 1,2,4-Trimethylbenzene 0.00500 ND 0.00506 0.00554 101 111 1 26.0-154 9.06 27 1,2,3-Trimethylbenzene 0.00500 ND 0.00520 0.00564 104 113 1 32.0-149 8.12 28 1,3,5-Trimethylbenzene 0.00500 ND 0.00528 0.00575 106 115 1 28.0-153 8.52 27 Vinyl chloride 0.00500 ND 0.00505 0.00497 101 99.4 1 10.0-160 1.60 27 Xylenes, Total 0.0150 ND 0.0157 0.0159 105 106 1 29.0-154 1.27 28 (S) Toluene-d8 104 105 80.0-120 (S) 4-Bromofluorobenzene 88.6 104 77.0-126 (S) 1,2-Dichloroethane-d4 109 105 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 63 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 63 of 82 QUALITY CONTROL SUMMARYWG2131061 Volatile Organic Compounds (GC/MS) by Method 8260B L1653392-12,13,14,15 Method Blank (MB) (MB) R3972470-3 09/12/23 21:40 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,1-Dichloroethane U 0.000100 0.00100 1,1-Dichloroethene U 0.000188 0.00100 (S) Toluene-d8 113 80.0-120 (S) 4-Bromofluorobenzene 102 77.0-126 (S) 1,2-Dichloroethane-d4 109 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3972470-1 09/12/23 20:13 • (LCSD) R3972470-2 09/12/23 20:35 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,1-Dichloroethane 0.00500 0.00452 0.00437 90.4 87.4 70.0-126 3.37 20 1,1-Dichloroethene 0.00500 0.00469 0.00432 93.8 86.4 71.0-124 8.21 20 (S) Toluene-d8 112 110 80.0-120 (S) 4-Bromofluorobenzene 104 103 77.0-126 (S) 1,2-Dichloroethane-d4 110 110 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 64 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 64 of 82 QUALITY CONTROL SUMMARYWG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R3971953-2 09/12/23 03:29 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate 0.00165 J 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 65 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 65 of 82 QUALITY CONTROL SUMMARYWG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R3971953-2 09/12/23 03:29 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 31.1 10.0-120 (S) Phenol-d5 19.6 10.0-120 (S) Nitrobenzene-d5 77.3 10.0-127 (S) 2-Fluorobiphenyl 76.5 10.0-130 (S) 2,4,6-Tribromophenol 58.0 10.0-155 (S) p-Terphenyl-d14 78.2 10.0-128 Laboratory Control Sample (LCS) (LCS) R3971953-1 09/12/23 03:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0351 70.2 41.0-120 Acenaphthylene 0.0500 0.0361 72.2 43.0-120 Anthracene 0.0500 0.0366 73.2 45.0-120 Benzidine 0.100 0.00877 8.77 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0373 74.6 47.0-120 Benzo(b)fluoranthene 0.0500 0.0383 76.6 46.0-120 Benzo(k)fluoranthene 0.0500 0.0362 72.4 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0390 78.0 48.0-121 Benzo(a)pyrene 0.0500 0.0371 74.2 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0322 64.4 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0365 73.0 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 66 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 66 of 82 QUALITY CONTROL SUMMARYWG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-01,02,03,04,05,06,07,08 Laboratory Control Sample (LCS) (LCS) R3971953-1 09/12/23 03:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0327 65.4 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0374 74.8 45.0-120 2-Chloronaphthalene 0.0500 0.0350 70.0 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0322 64.4 44.0-120 Chrysene 0.0500 0.0361 72.2 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0388 77.6 47.0-120 1,2-Dichlorobenzene 0.0500 0.0302 60.4 20.0-120 1,3-Dichlorobenzene 0.0500 0.0302 60.4 17.0-120 1,4-Dichlorobenzene 0.0500 0.0309 61.8 18.0-120 3,3-Dichlorobenzidine 0.100 0.0720 72.0 44.0-120 2,4-Dinitrotoluene 0.0500 0.0352 70.4 49.0-124 2,6-Dinitrotoluene 0.0500 0.0356 71.2 46.0-120 Fluoranthene 0.0500 0.0353 70.6 51.0-120 Fluorene 0.0500 0.0329 65.8 47.0-120 Hexachlorobenzene 0.0500 0.0367 73.4 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0262 52.4 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0269 53.8 15.0-120 Hexachloroethane 0.0500 0.0301 60.2 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0350 70.0 49.0-122 Isophorone 0.0500 0.0320 64.0 36.0-120 Naphthalene 0.0500 0.0293 58.6 27.0-120 Nitrobenzene 0.0500 0.0328 65.6 27.0-120 n-Nitrosodimethylamine 0.0500 0.0209 41.8 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0381 76.2 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0346 69.2 31.0-120 Phenanthrene 0.0500 0.0367 73.4 46.0-120 Benzylbutyl phthalate 0.0500 0.0398 79.6 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0368 73.6 43.0-122 Di-n-butyl phthalate 0.0500 0.0376 75.2 49.0-121 Diethyl phthalate 0.0500 0.0330 66.0 48.0-122 Dimethyl phthalate 0.0500 0.0333 66.6 48.0-120 Di-n-octyl phthalate 0.0500 0.0374 74.8 42.0-125 Pyrene 0.0500 0.0375 75.0 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0251 50.2 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0230 46.0 40.0-120 2-Chlorophenol 0.0500 0.0237 47.4 25.0-120 2,4-Dichlorophenol 0.0500 0.0242 48.4 36.0-120 2,4-Dimethylphenol 0.0500 0.0243 48.6 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0387 77.4 38.0-138 2,4-Dinitrophenol 0.0500 0.0327 65.4 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 67 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 67 of 82 QUALITY CONTROL SUMMARYWG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-01,02,03,04,05,06,07,08 Laboratory Control Sample (LCS) (LCS) R3971953-1 09/12/23 03:08 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0326 65.2 31.0-120 4-Nitrophenol 0.0500 0.0110 22.0 10.0-120 Pentachlorophenol 0.0500 0.0254 50.8 23.0-120 Phenol 0.0500 0.0110 22.0 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0336 67.2 42.0-120 (S) 2-Fluorophenol 30.1 10.0-120 (S) Phenol-d5 20.6 10.0-120 (S) Nitrobenzene-d5 59.7 10.0-127 (S) 2-Fluorobiphenyl 71.7 10.0-130 (S) 2,4,6-Tribromophenol 69.5 10.0-155 (S) p-Terphenyl-d14 72.2 10.0-128 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/12/23 08:50 • (MS) R3971953-3 09/12/23 09:11 • (MSD) R3971953-4 09/12/23 09:32 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acenaphthene 0.0455 ND 0.0263 0.0322 57.5 70.4 1 28.0-120 20.2 25 Acenaphthylene 0.0455 ND 0.0273 0.0325 60.0 71.4 1 31.0-121 17.4 25 Anthracene 0.0455 ND 0.0245 0.0327 53.8 71.9 1 36.0-120 J3 28.7 23 Benzidine 0.0910 ND ND ND 0.000 0.000 1 10.0-120 J6 J6 0.000 37 Benzo(a)anthracene 0.0455 ND 0.0209 0.0322 45.9 70.8 1 39.0-120 J3 42.6 23 Benzo(b)fluoranthene 0.0455 ND 0.0209 0.0321 45.9 70.5 1 37.0-120 J3 42.3 23 Benzo(k)fluoranthene 0.0455 ND 0.0194 0.0309 42.6 67.9 1 37.0-120 J3 45.7 26 Benzo(g,h,i)perylene 0.0455 ND 0.0197 0.0319 43.3 70.1 1 37.0-123 J3 47.3 25 Benzo(a)pyrene 0.0455 ND 0.0190 0.0305 41.8 67.0 1 37.0-120 J3 46.5 24 Bis(2-chlorethoxy)methane 0.0455 ND 0.0256 0.0287 56.3 63.1 1 17.0-120 11.4 31 Bis(2-chloroethyl)ether 0.0455 ND 0.0281 0.0321 61.8 70.5 1 14.0-120 13.3 33 2,2-Oxybis(1-Chloropropane)0.0455 ND 0.0263 0.0291 57.8 64.0 1 18.0-120 10.1 34 4-Bromophenyl-phenylether 0.0455 ND 0.0251 0.0337 55.2 74.1 1 37.0-120 J3 29.3 24 2-Chloronaphthalene 0.0455 ND 0.0262 0.0299 57.6 65.7 1 29.0-120 13.2 28 4-Chlorophenyl-phenylether 0.0455 ND 0.0224 0.0294 49.2 64.6 1 36.0-120 J3 27.0 23 Chrysene 0.0455 ND 0.0211 0.0317 46.4 69.7 1 38.0-120 J3 40.2 23 Dibenz(a,h)anthracene 0.0455 ND 0.0199 0.0319 43.7 70.1 1 36.0-121 J3 46.3 24 1,2-Dichlorobenzene 0.0455 ND 0.0234 0.0255 51.4 56.0 1 18.0-120 8.59 40 1,3-Dichlorobenzene 0.0455 ND 0.0225 0.0255 49.5 56.0 1 15.0-120 12.5 40 1,4-Dichlorobenzene 0.0455 ND 0.0238 0.0263 52.3 57.8 1 17.0-120 9.98 40 3,3-Dichlorobenzidine 0.0910 ND ND 0.0133 5.55 14.6 1 10.0-134 J6 J3 89.9 30 2,4-Dinitrotoluene 0.0455 ND 0.0277 0.0322 60.9 70.8 1 39.0-125 15.0 25 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 68 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 68 of 82 QUALITY CONTROL SUMMARYWG2128627 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-01,02,03,04,05,06,07,08 L1653443-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653443-05 09/12/23 08:50 • (MS) R3971953-3 09/12/23 09:11 • (MSD) R3971953-4 09/12/23 09:32 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 2,6-Dinitrotoluene 0.0455 ND 0.0284 0.0338 62.4 74.3 1 36.0-120 17.4 27 Fluoranthene 0.0455 ND 0.0227 0.0330 49.9 72.5 1 41.0-121 J3 37.0 22 Fluorene 0.0455 ND 0.0241 0.0304 53.0 66.8 1 37.0-120 23.1 24 Hexachlorobenzene 0.0455 ND 0.0217 0.0321 47.7 70.5 1 35.0-122 J3 38.7 24 Hexachloro-1,3-butadiene 0.0455 ND 0.0168 0.0213 36.9 46.8 1 12.0-120 23.6 34 Hexachlorocyclopentadiene 0.0455 ND 0.0156 0.0230 34.3 50.5 1 10.0-120 J3 38.3 33 Hexachloroethane 0.0455 ND 0.0221 0.0252 48.6 55.4 1 10.0-120 13.1 40 Indeno(1,2,3-cd)pyrene 0.0455 ND 0.0178 0.0289 39.1 63.5 1 38.0-125 J3 47.5 24 Isophorone 0.0455 ND 0.0259 0.0289 56.9 63.5 1 21.0-120 10.9 27 Naphthalene 0.0455 ND 0.0237 0.0262 52.1 57.6 1 10.0-120 10.0 31 Nitrobenzene 0.0455 ND 0.0353 0.0345 77.6 75.8 1 12.0-120 2.29 30 n-Nitrosodimethylamine 0.0455 ND 0.0172 0.0187 37.8 41.1 1 10.0-120 8.36 40 n-Nitrosodiphenylamine 0.0455 ND 0.0262 0.0336 57.6 73.8 1 37.0-120 J3 24.7 24 n-Nitrosodi-n-propylamine 0.0455 ND 0.0283 0.0307 62.2 67.5 1 16.0-120 8.14 30 Phenanthrene 0.0455 ND 0.0256 0.0335 56.3 73.6 1 33.0-120 J3 26.7 22 Benzylbutyl phthalate 0.0455 ND 0.0266 0.0373 58.5 82.0 1 34.0-126 J3 33.5 24 Bis(2-ethylhexyl)phthalate 0.0455 ND 0.0195 0.0319 42.9 70.1 1 33.0-126 J3 48.2 25 Di-n-butyl phthalate 0.0455 ND 0.0249 0.0355 54.7 78.0 1 35.0-128 J3 35.1 23 Diethyl phthalate 0.0455 ND 0.0245 0.0310 53.8 68.1 1 39.0-125 23.4 24 Dimethyl phthalate 0.0455 ND 0.0220 0.0307 48.4 67.5 1 37.0-120 J3 33.0 24 Di-n-octyl phthalate 0.0455 ND 0.0201 0.0335 44.2 73.6 1 25.0-135 J3 50.0 26 Pyrene 0.0455 ND 0.0249 0.0334 54.7 73.4 1 39.0-120 J3 29.2 22 1,2,4-Trichlorobenzene 0.0455 ND 0.0194 0.0220 42.6 48.4 1 15.0-120 12.6 31 4-Chloro-3-methylphenol 0.0455 ND 0.0126 0.0180 27.7 39.6 1 26.0-120 J3 35.3 27 2-Chlorophenol 0.0455 ND 0.0139 0.0188 30.5 41.3 1 18.0-120 30.0 34 2,4-Dichlorophenol 0.0455 ND 0.0126 0.0184 27.7 40.4 1 19.0-120 J3 37.4 27 2,4-Dimethylphenol 0.0455 ND 0.0136 0.0203 29.9 44.6 1 15.0-120 J3 39.5 28 4,6-Dinitro-2-methylphenol 0.0455 ND 0.0200 0.0321 44.0 70.5 1 10.0-144 J3 46.4 39 2,4-Dinitrophenol 0.0455 ND 0.0194 0.0296 42.6 65.1 1 10.0-120 J3 41.6 40 2-Nitrophenol 0.0455 ND 0.0176 0.0257 38.7 56.5 1 20.0-120 J3 37.4 30 4-Nitrophenol 0.0455 ND ND 0.0102 16.8 22.4 1 10.0-120 28.4 40 Pentachlorophenol 0.0455 ND 0.0126 0.0240 27.7 52.7 1 10.0-128 J3 62.3 37 Phenol 0.0455 ND 0.0107 0.0108 23.5 23.7 1 10.0-120 0.930 40 2,4,6-Trichlorophenol 0.0455 ND 0.0150 0.0244 33.0 53.6 1 26.0-120 J3 47.7 31 (S) 2-Fluorophenol 24.2 28.1 10.0-120 (S) Phenol-d5 17.4 19.0 10.0-120 (S) Nitrobenzene-d5 57.4 63.8 10.0-127 (S) 2-Fluorobiphenyl 56.8 68.4 10.0-130 (S) 2,4,6-Tribromophenol 33.8 58.2 10.0-155 (S) p-Terphenyl-d14 43.3 69.2 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 69 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 69 of 82 QUALITY CONTROL SUMMARYWG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-09,10,11,12 Method Blank (MB) (MB) R3973817-2 09/13/23 18:11 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Acenaphthene U 0.0000886 0.00100 Acenaphthylene U 0.0000921 0.00100 Anthracene U 0.0000804 0.00100 Benzidine U 0.00374 0.0100 Benzo(a)anthracene U 0.000199 0.00100 Benzo(b)fluoranthene U 0.000130 0.00100 Benzo(k)fluoranthene U 0.000120 0.00100 Benzo(g,h,i)perylene U 0.000121 0.00100 Benzo(a)pyrene U 0.0000381 0.00100 Bis(2-chlorethoxy)methane U 0.000116 0.0100 Bis(2-chloroethyl)ether U 0.000137 0.0100 2,2-Oxybis(1-Chloropropane)U 0.000210 0.0100 4-Bromophenyl-phenylether U 0.0000877 0.0100 2-Chloronaphthalene U 0.0000648 0.00100 4-Chlorophenyl-phenylether U 0.0000926 0.0100 Chrysene U 0.000130 0.00100 Dibenz(a,h)anthracene U 0.0000644 0.00100 1,2-Dichlorobenzene U 0.0000713 0.0100 1,3-Dichlorobenzene U 0.000132 0.0100 1,4-Dichlorobenzene U 0.0000942 0.0100 3,3-Dichlorobenzidine U 0.000212 0.0100 2,4-Dinitrotoluene U 0.0000983 0.0100 2,6-Dinitrotoluene U 0.000250 0.0100 Fluoranthene U 0.000102 0.00100 Fluorene U 0.0000844 0.00100 Hexachlorobenzene U 0.0000755 0.00100 Hexachloro-1,3-butadiene U 0.0000968 0.0100 Hexachlorocyclopentadiene U 0.0000598 0.0100 Hexachloroethane U 0.000127 0.0100 Indeno(1,2,3-cd)pyrene U 0.000279 0.00100 Isophorone U 0.000143 0.0100 Naphthalene U 0.000159 0.00100 Nitrobenzene U 0.000297 0.0100 n-Nitrosodimethylamine U 0.000998 0.0100 n-Nitrosodiphenylamine U 0.00237 0.0100 n-Nitrosodi-n-propylamine U 0.000261 0.0100 Phenanthrene U 0.000112 0.00100 Benzylbutyl phthalate U 0.000765 0.00300 Bis(2-ethylhexyl)phthalate U 0.000895 0.00300 Di-n-butyl phthalate U 0.000453 0.00300 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 70 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 70 of 82 QUALITY CONTROL SUMMARYWG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-09,10,11,12 Method Blank (MB) (MB) R3973817-2 09/13/23 18:11 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Diethyl phthalate U 0.000287 0.00300 Dimethyl phthalate U 0.000260 0.00300 Di-n-octyl phthalate U 0.000932 0.00300 Pyrene U 0.000107 0.00100 1,2,4-Trichlorobenzene U 0.0000698 0.0100 4-Chloro-3-methylphenol U 0.000131 0.0100 2-Chlorophenol U 0.000133 0.0100 2,4-Dichlorophenol U 0.000102 0.0100 2,4-Dimethylphenol U 0.0000636 0.0100 4,6-Dinitro-2-methylphenol U 0.00112 0.0100 2,4-Dinitrophenol U 0.00593 0.0100 2-Nitrophenol U 0.000117 0.0100 4-Nitrophenol U 0.000143 0.0100 Pentachlorophenol U 0.000313 0.0100 Phenol U 0.00433 0.0100 2,4,6-Trichlorophenol U 0.000100 0.0100 (S) 2-Fluorophenol 34.3 10.0-120 (S) Phenol-d5 22.3 10.0-120 (S) Nitrobenzene-d5 59.1 10.0-127 (S) 2-Fluorobiphenyl 58.3 10.0-130 (S) 2,4,6-Tribromophenol 54.0 10.0-155 (S) p-Terphenyl-d14 64.1 10.0-128 Laboratory Control Sample (LCS) (LCS) R3973817-1 09/13/23 17:50 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Acenaphthene 0.0500 0.0325 65.0 41.0-120 Acenaphthylene 0.0500 0.0329 65.8 43.0-120 Anthracene 0.0500 0.0349 69.8 45.0-120 Benzidine 0.100 0.00338 3.38 10.0-120 J4 Benzo(a)anthracene 0.0500 0.0356 71.2 47.0-120 Benzo(b)fluoranthene 0.0500 0.0359 71.8 46.0-120 Benzo(k)fluoranthene 0.0500 0.0345 69.0 46.0-120 Benzo(g,h,i)perylene 0.0500 0.0363 72.6 48.0-121 Benzo(a)pyrene 0.0500 0.0353 70.6 47.0-120 Bis(2-chlorethoxy)methane 0.0500 0.0298 59.6 33.0-120 Bis(2-chloroethyl)ether 0.0500 0.0367 73.4 23.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 71 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 71 of 82 QUALITY CONTROL SUMMARYWG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-09,10,11,12 Laboratory Control Sample (LCS) (LCS) R3973817-1 09/13/23 17:50 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,2-Oxybis(1-Chloropropane)0.0500 0.0302 60.4 28.0-120 4-Bromophenyl-phenylether 0.0500 0.0346 69.2 45.0-120 2-Chloronaphthalene 0.0500 0.0291 58.2 37.0-120 4-Chlorophenyl-phenylether 0.0500 0.0326 65.2 44.0-120 Chrysene 0.0500 0.0351 70.2 48.0-120 Dibenz(a,h)anthracene 0.0500 0.0364 72.8 47.0-120 1,2-Dichlorobenzene 0.0500 0.0275 55.0 20.0-120 1,3-Dichlorobenzene 0.0500 0.0270 54.0 17.0-120 1,4-Dichlorobenzene 0.0500 0.0278 55.6 18.0-120 3,3-Dichlorobenzidine 0.100 0.0615 61.5 44.0-120 2,4-Dinitrotoluene 0.0500 0.0396 79.2 49.0-124 2,6-Dinitrotoluene 0.0500 0.0365 73.0 46.0-120 Fluoranthene 0.0500 0.0375 75.0 51.0-120 Fluorene 0.0500 0.0335 67.0 47.0-120 Hexachlorobenzene 0.0500 0.0333 66.6 44.0-120 Hexachloro-1,3-butadiene 0.0500 0.0212 42.4 19.0-120 Hexachlorocyclopentadiene 0.0500 0.0174 34.8 15.0-120 Hexachloroethane 0.0500 0.0271 54.2 15.0-120 Indeno(1,2,3-cd)pyrene 0.0500 0.0323 64.6 49.0-122 Isophorone 0.0500 0.0308 61.6 36.0-120 Naphthalene 0.0500 0.0254 50.8 27.0-120 Nitrobenzene 0.0500 0.0287 57.4 27.0-120 n-Nitrosodimethylamine 0.0500 0.0246 49.2 10.0-120 n-Nitrosodiphenylamine 0.0500 0.0338 67.6 47.0-120 n-Nitrosodi-n-propylamine 0.0500 0.0347 69.4 31.0-120 Phenanthrene 0.0500 0.0349 69.8 46.0-120 Benzylbutyl phthalate 0.0500 0.0390 78.0 43.0-121 Bis(2-ethylhexyl)phthalate 0.0500 0.0371 74.2 43.0-122 Di-n-butyl phthalate 0.0500 0.0421 84.2 49.0-121 Diethyl phthalate 0.0500 0.0383 76.6 48.0-122 Dimethyl phthalate 0.0500 0.0364 72.8 48.0-120 Di-n-octyl phthalate 0.0500 0.0378 75.6 42.0-125 Pyrene 0.0500 0.0336 67.2 47.0-120 1,2,4-Trichlorobenzene 0.0500 0.0220 44.0 24.0-120 4-Chloro-3-methylphenol 0.0500 0.0306 61.2 40.0-120 2-Chlorophenol 0.0500 0.0287 57.4 25.0-120 2,4-Dichlorophenol 0.0500 0.0258 51.6 36.0-120 2,4-Dimethylphenol 0.0500 0.0319 63.8 33.0-120 4,6-Dinitro-2-methylphenol 0.0500 0.0406 81.2 38.0-138 2,4-Dinitrophenol 0.0500 0.0437 87.4 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 72 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 72 of 82 QUALITY CONTROL SUMMARYWG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-09,10,11,12 Laboratory Control Sample (LCS) (LCS) R3973817-1 09/13/23 17:50 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2-Nitrophenol 0.0500 0.0304 60.8 31.0-120 4-Nitrophenol 0.0500 0.0177 35.4 10.0-120 Pentachlorophenol 0.0500 0.0315 63.0 23.0-120 Phenol 0.0500 0.0156 31.2 10.0-120 2,4,6-Trichlorophenol 0.0500 0.0303 60.6 42.0-120 (S) 2-Fluorophenol 39.8 10.0-120 (S) Phenol-d5 29.2 10.0-120 (S) Nitrobenzene-d5 52.9 10.0-127 (S) 2-Fluorobiphenyl 61.6 10.0-130 (S) 2,4,6-Tribromophenol 67.0 10.0-155 (S) p-Terphenyl-d14 69.3 10.0-128 L1653505-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653505-01 09/13/23 20:20 • (MS) R3973817-3 09/13/23 20:41 • (MSD) R3973817-4 09/13/23 21:02 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Acenaphthene 0.0500 ND 0.0291 0.0282 58.2 56.4 1 28.0-120 3.14 25 Acenaphthylene 0.0500 ND 0.0295 0.0285 59.0 57.0 1 31.0-121 3.45 25 Anthracene 0.0500 ND 0.0302 0.0300 60.4 60.0 1 36.0-120 0.664 23 Benzidine 0.100 ND ND ND 0.000 0.000 1 10.0-120 J6 J6 0.000 37 Benzo(a)anthracene 0.0500 ND 0.0311 0.0306 62.2 61.2 1 39.0-120 1.62 23 Benzo(b)fluoranthene 0.0500 ND 0.0305 0.0302 61.0 60.4 1 37.0-120 0.988 23 Benzo(k)fluoranthene 0.0500 ND 0.0295 0.0292 59.0 58.4 1 37.0-120 1.02 26 Benzo(g,h,i)perylene 0.0500 ND 0.0308 0.0296 61.6 59.2 1 37.0-123 3.97 25 Benzo(a)pyrene 0.0500 ND 0.0301 0.0298 60.2 59.6 1 37.0-120 1.00 24 Bis(2-chlorethoxy)methane 0.0500 ND 0.0273 0.0264 54.6 52.8 1 17.0-120 3.35 31 Bis(2-chloroethyl)ether 0.0500 ND 0.0312 0.0297 62.4 59.4 1 14.0-120 4.93 33 2,2-Oxybis(1-Chloropropane)0.0500 ND 0.0267 0.0260 53.4 52.0 1 18.0-120 2.66 34 4-Bromophenyl-phenylether 0.0500 ND 0.0302 0.0301 60.4 60.2 1 37.0-120 0.332 24 2-Chloronaphthalene 0.0500 ND 0.0264 0.0257 52.8 51.4 1 29.0-120 2.69 28 4-Chlorophenyl-phenylether 0.0500 ND 0.0292 0.0283 58.4 56.6 1 36.0-120 3.13 23 Chrysene 0.0500 ND 0.0305 0.0300 61.0 60.0 1 38.0-120 1.65 23 Dibenz(a,h)anthracene 0.0500 ND 0.0314 0.0304 62.8 60.8 1 36.0-121 3.24 24 1,2-Dichlorobenzene 0.0500 ND 0.0242 0.0233 48.4 46.6 1 18.0-120 3.79 40 1,3-Dichlorobenzene 0.0500 ND 0.0238 0.0231 47.6 46.2 1 15.0-120 2.99 40 1,4-Dichlorobenzene 0.0500 ND 0.0244 0.0235 48.8 47.0 1 17.0-120 3.76 40 3,3-Dichlorobenzidine 0.100 ND 0.0510 0.0499 51.0 49.9 1 10.0-134 2.18 30 2,4-Dinitrotoluene 0.0500 ND 0.0336 0.0331 67.2 66.2 1 39.0-125 1.50 25 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 73 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 73 of 82 QUALITY CONTROL SUMMARYWG2129511 Semi Volatile Organic Compounds (GC/MS) by Method 8270C L1653392-09,10,11,12 L1653505-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1653505-01 09/13/23 20:20 • (MS) R3973817-3 09/13/23 20:41 • (MSD) R3973817-4 09/13/23 21:02 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 2,6-Dinitrotoluene 0.0500 ND 0.0327 0.0320 65.4 64.0 1 36.0-120 2.16 27 Fluoranthene 0.0500 ND 0.0327 0.0321 65.4 64.2 1 41.0-121 1.85 22 Fluorene 0.0500 ND 0.0297 0.0288 59.4 57.6 1 37.0-120 3.08 24 Hexachlorobenzene 0.0500 ND 0.0286 0.0287 57.2 57.4 1 35.0-122 0.349 24 Hexachloro-1,3-butadiene 0.0500 ND 0.0197 0.0189 39.4 37.8 1 12.0-120 4.15 34 Hexachlorocyclopentadiene 0.0500 ND 0.0165 0.0168 33.0 33.6 1 10.0-120 1.80 33 Hexachloroethane 0.0500 ND 0.0233 0.0224 46.6 44.8 1 10.0-120 3.94 40 Indeno(1,2,3-cd)pyrene 0.0500 ND 0.0277 0.0270 55.4 54.0 1 38.0-125 2.56 24 Isophorone 0.0500 ND 0.0286 0.0273 57.2 54.6 1 21.0-120 4.65 27 Naphthalene 0.0500 ND 0.0233 0.0226 46.6 45.2 1 10.0-120 3.05 31 Nitrobenzene 0.0500 ND 0.0261 0.0251 52.2 50.2 1 12.0-120 3.91 30 n-Nitrosodimethylamine 0.0500 ND 0.0213 0.0194 42.6 38.8 1 10.0-120 9.34 40 n-Nitrosodiphenylamine 0.0500 ND 0.0303 0.0292 60.6 58.4 1 37.0-120 3.70 24 n-Nitrosodi-n-propylamine 0.0500 ND 0.0314 0.0301 62.8 60.2 1 16.0-120 4.23 30 Phenanthrene 0.0500 ND 0.0306 0.0300 61.2 60.0 1 33.0-120 1.98 22 Benzylbutyl phthalate 0.0500 ND 0.0344 0.0344 68.8 68.8 1 34.0-126 0.000 24 Bis(2-ethylhexyl)phthalate 0.0500 ND 0.0318 0.0314 63.6 62.8 1 33.0-126 1.27 25 Di-n-butyl phthalate 0.0500 ND 0.0366 0.0371 73.2 74.2 1 35.0-128 1.36 23 Diethyl phthalate 0.0500 ND 0.0339 0.0334 67.8 66.8 1 39.0-125 1.49 24 Dimethyl phthalate 0.0500 ND 0.0311 0.0313 62.2 62.6 1 37.0-120 0.641 24 Di-n-octyl phthalate 0.0500 ND 0.0326 0.0324 65.2 64.8 1 25.0-135 0.615 26 Pyrene 0.0500 ND 0.0299 0.0295 59.8 59.0 1 39.0-120 1.35 22 1,2,4-Trichlorobenzene 0.0500 ND 0.0200 0.0194 40.0 38.8 1 15.0-120 3.05 31 4-Chloro-3-methylphenol 0.0500 ND 0.0279 0.0257 55.8 51.4 1 26.0-120 8.21 27 2-Chlorophenol 0.0500 ND 0.0247 0.0223 49.4 44.6 1 18.0-120 10.2 34 2,4-Dichlorophenol 0.0500 ND 0.0233 0.0215 46.6 43.0 1 19.0-120 8.04 27 2,4-Dimethylphenol 0.0500 ND 0.0289 0.0259 57.8 51.8 1 15.0-120 10.9 28 4,6-Dinitro-2-methylphenol 0.0500 ND 0.0357 0.0352 71.4 70.4 1 10.0-144 1.41 39 2,4-Dinitrophenol 0.0500 ND 0.0389 0.0374 77.8 74.8 1 10.0-120 3.93 40 2-Nitrophenol 0.0500 ND 0.0286 0.0271 57.2 54.2 1 20.0-120 5.39 30 4-Nitrophenol 0.0500 ND 0.0154 0.0144 30.8 28.8 1 10.0-120 6.71 40 Pentachlorophenol 0.0500 ND 0.0268 0.0253 53.6 50.6 1 10.0-128 5.76 37 Phenol 0.0500 ND 0.0134 0.0122 26.8 24.4 1 10.0-120 9.37 40 2,4,6-Trichlorophenol 0.0500 ND 0.0272 0.0265 54.4 53.0 1 26.0-120 2.61 31 (S) 2-Fluorophenol 34.1 30.6 10.0-120 (S) Phenol-d5 23.8 21.0 10.0-120 (S) Nitrobenzene-d5 53.8 50.0 10.0-127 (S) 2-Fluorobiphenyl 54.6 52.6 10.0-130 (S) 2,4,6-Tribromophenol 58.0 58.0 10.0-155 (S) p-Terphenyl-d14 59.2 58.9 10.0-128 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 74 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 74 of 82 QUALITY CONTROL SUMMARYWG2129847 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1653392-01,02 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3973202-1 09/12/23 02:01 • (LCSD) R3973202-2 09/12/23 02:20 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0326 0.0508 65.2 102 73.0-146 J4 J3 43.6 20 (S) Nitrobenzene-d5 61.0 60.7 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 75 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 75 of 82 QUALITY CONTROL SUMMARYWG2130432 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1653392-03,04 Method Blank (MB) (MB) R3973198-3 09/14/23 00:39 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.00277 0.0000447 0.000400 (S) Nitrobenzene-d5 59.7 10.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3973198-2 09/14/23 00:20 • (LCSD) R3973198-1 09/14/23 00:01 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0552 0.0567 110 113 73.0-146 2.68 20 (S) Nitrobenzene-d5 69.6 58.6 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 76 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 76 of 82 QUALITY CONTROL SUMMARYWG2130709 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1653392-05,06,07,08,09,10,11,12,13,14,15 Method Blank (MB) (MB) R3973199-3 09/14/23 01:37 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dioxane 0.0000852 J 0.0000447 0.000400 (S) Nitrobenzene-d5 42.8 10.0-120 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3973199-1 09/14/23 00:58 • (LCSD) R3973199-2 09/14/23 01:18 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% 1,4-Dioxane 0.0500 0.0485 0.0533 97.0 107 73.0-146 9.43 20 (S) Nitrobenzene-d5 58.7 54.8 10.0-120 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 77 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 77 of 82 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description B The same analyte is found in the associated blank. E The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL). J The identification of the analyte is acceptable; the reported value is an estimate. J3 The associated batch QC was outside the established quality control range for precision. J4 The associated batch QC was outside the established quality control range for accuracy. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 78 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 78 of 82 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:40 79 of 82 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Tetra Tech Inc. - UT L1653392 09/19/23 14:44 79 of 82